We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
0% Loaded
1/3
Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.
We have returned to singular Stump, with 145mm of rear journey throughout the board, and 150-160mm forks on all builds. The geometry and changes are fairly much like that of the outgoing EVO, however small particulars have modified and developed. Essentially the most main change comes within the type of a revised kinematic, in tandem with a novel shock know-how to maximise the profit.
• 29″ or combined wheels (S1&S2 combined solely)
• Carbon body
• 145mm body journey, 150-160mm fork
• 63-65.5° head angle
• 400-530mm attain
• 430-445mm chainstays
• 77° seat angle
• Wheel dimension and body geometry flip chips
• Precise weight: 31.2 lb / 14.2 kg (S5)
• Worth: $6,500-12,000 USD
• S-Works Frameset: $3,500 USD
• specialised.com
Body Options
Issues right here look pretty much like the last-generation EVO, with press-in headset cups that permit for ±1° head angle adjustment, a excessive/low flip chip to alter backside bracket peak and headtube/seattube angle, and an aftermarket rocker hyperlink that permits you to run a unique sized rear wheel. That final factor solely applies to bikes sized S3 and bigger, because the S1 and S2 choices are mixed-wheel solely.
The Stumpjumper contains SWAT 4.0, Specialised’s most refined in-frame storage answer but. First seen on the Epic 8, this latest iteration of SWAT eschews any superfluous {hardware} mounted to the body, and as a substitute has the door of the hatch work together immediately with the carbon of the body, making certain a cosy match, lengthy lifespan, and nice climate sealing.
One new element on the Stumpy that is certain to lift some hackles is the elimination of mechanical drivetrain cable routing – this bike is wi-fi shifting solely. The argument from their growth staff is that they consider the very best shifting efficiency obtainable comes from programs like SRAM Transmission, and that the most effective is what of us deserve on this bike.
The bike makes use of a 200mm rotor native put up rear brake mount, which is a bit stunning contemplating the truth that almost all of the Stumpjumper’s builds include SRAM Maven brakes – these can provide loads of energy on a smaller 180mm rotor. That mentioned, operating them with 200s entrance and rear has never felt extreme on this bike.
Geometry
Just like the outgoing Stumpy EVO, the Stumpjumper 15 implements a variety of geometry adjustment baked into the body. The top angle can deviate 1° in both course from the inventory 64.5° place, through a set of simply swappable cups that include the body. The flip chip on the chainstay permits the rider to lift or decrease the underside bracket peak by 7mm, whereas additionally altering the top and seat angles by 0.5°. All this in conjunction makes for a really wide selection of adjustment, so I will keep on with the inventory numbers for now, which pertain to the Center head angle and Excessive flip chip place.
As talked about above, the top angle of the brand new Stumpjumper is 64.5° – slack sufficient for absolutely anything whereas retaining deft dealing with on flatter corners. The efficient seat angle on all sizes falls proper round 77°, although the precise angle the seat tube casts measures slacker than that determine, touchdown someplace round 70°. Attain figures vary from 400mm to 530mm throughout the 6-size vary, with 25mm jumps between all however the largest dimension, which scales by 30mm. Stack heights are very tall for Specialised, with the headtube size rising fairly considerably on the bigger sized bikes.
Backside bracket drop is 38mm in all however the S1 bike, which measures in at 41mm. Chainstay lengths scale throughout the vary, with the lengths throughout all six sizes sitting as follows: 430mm, 432mm, 435mm, 435mm, 445mm, 445mm. Once more, could of those figures could be modified by the top person, with a wide range of doable outcomes as one experiments with the combos.
Suspension Design
In some ways this can be a acquainted story, however the characters concerned have developed barely to permit for a unique final result. Our important character – the shock – is probably the most considerably modified merchandise at play right here, with some novel applied sciences permitting for a really linear kinematic.
The Genie Shock
Given the linear nature of the Stumpjumper 15, it might sound essential to implement a fairly progressive spring to maintain the bike from bottoming out harshly and sometimes. Nonetheless, the staff behind the bike went in a unique course and as a substitute concocted a shock that makes probably the most of that linear leverage fee. The primary key factor right here is the shock’s large air quantity. This accounts for the beer can sized outer air sleeve, dubbed the Additional Quantity (EV) chamber. For the primary 70% of journey, the shock’s inner air chamber and the EV sleeve act as one air spring, ramping slowly as you compress by way of the bike’s journey. At that 70% mark, a sliding bushing inside the shock closes off the EV chamber, isolating the a lot smaller inner air chamber. This makes for a much more progressive air chamber, permitting the shock to ramp up in that final 30% of journey and preserve you from operating into the top of journey.
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Specialised Journey Dynamics – the group answerable for creating the Genie shock – dubbed this sliding bushing know-how Pneumatic Spring Help. The alternatives this know-how unlocks prolong effectively past this shock alone, as specified by this patent filed final 12 months.
The Specialised Journey Dynamics staff examined all kinds of construct choices with the early variations of the Genie shock with a purpose to make a decision on elements just like the switch level between giant and small air quantity and whether or not or to not construct the shock on a piggyback platform. In the end, they selected the Float as a base for the know-how, as a result of any added good thing about the additional oil quantity in a piggyback shock felt unsubstantial relative to the features from the elevated air quantity. Fortunately the Float can be a extensively obtainable shock with huge elements availability, so spares for any mandatory service can be simple to search out.
Whereas this intelligent know-how permits the Genie shock to optimize efficiency for the kinematics on the Stumpjumper 15, it isn’t as if the bike would not work with different extra typical shocks. I had the chance to check the bike back-to-back with the Genie and different inventory choices, and although the customized tailor-made shock appeared higher suited, the inventory choices labored fairly effectively.
Construct Kits
All carbon, all with the identical layup, however with loads of elements variations to tell apart the assorted construct ranges. The S-Works body differs barely in its use of a carbon fiber rocker hyperlink to save lots of weight, however in any other case the frames are the identical by way of your complete lineup. Each bike, save for the Öhlins construct, comes with a Genie shock.
Journey Impressions
For the previous couple months, the Stumpjumper has been my major experience for day by day scorching laps and longer rides alike. That is telling of how a lot I’ve loved the bike thus far, but additionally speaks to the adaptability of the platform. The baked in geometry and suspension changes can basically change the character of the bike, taking it from a sharp-feeling path bike to downhill slugger all inside the parameters of the inventory parts. Geometry-wise, I discover the inventory place to be the most effective for me and my using terrain. The 64.5° head tube angle handles intuitively on a variety of trails, and nonetheless feels confidant in very steep terrain. That is helped by the ample stack peak, which retains you in a powerful upright place with good weight by way of the bars. My one gripe is with the seat tube angle, which feels a contact too slack for me. That is seemingly as a consequence of my pretty excessive seat peak, and the slacker precise seat tube angle.
I owned the earlier alloy Stumpjumper EVO for years, and fondly keep in mind the various good rides I had on that bike. This one is healthier, largely within the bump absorption division. The geometry is kind of comparable between the 2, however the Stumpjumper 15’s potential to remain composed by way of very tough terrain is de facto spectacular. The bike additionally generates a stunning quantity of grip for a 145mm bike, placing up robust competitors with the longest journey bikes in my storage. Whereas the suspension does really feel fairly lively, I by no means discovered it wallowy or obscure in pumping eventualities – it simply strikes greater than you’d initially anticipate. For individuals who need a smaller bike really feel, it is so simple as including extra spacers to the Additional Quantity chamber of the shock and dialing in air strain.
Final weekend, I went for a experience which may simply spotlight the consolation, functionality, and stable one-bike-ness of the Stumpy. At round 95 miles and 18,000 toes of climbing, this was one of many largest rides I’ve carried out in current reminiscence, and I really feel like I selected the proper bike for the mission. There weren’t any mellow descents on the map, every with their very own character and terrain variations. Operating the bike within the inventory geometry setting, with 1 spacer within the shock, it felt like sufficient bike to hit some severe options alongside the way in which, whereas remaining environment friendly sufficient to not add further work over the course of the day. The informal stats drop is not a lot to inflate my feeble ego, however as an instance the well-rounded nature of the Stumpjumper – the experience felt comfy and enjoyable for your complete day. Price noting, I toyed with the easily-reached lockout change on a pair fireplace street climbs, however in the end most well-liked climbing with the shock open.
I’ve many extra ideas about this bike, however will attempt to save most of them for the complete overview. Keep tuned for that, as this bike is certain to see many permutations as I proceed to play with the setup and changes.