- DESCRIPTION
- Specifications
- Geometry
- Sizing Guide
DESCRIPTION
The Stumpjumper 15 carries the legacy of one of the most famous names in mountain biking. Labelled as the ultimate trail bike, the new Stumpjumper handles bumps like a heavyweight, ensuring a smooth ride. It offers the agility, control, and efficiency of a short-travel bike, making it incredibly versatile. The bike’s geometry is engineered for versatility, offering the capability of a larger bike when needed, nimbleness in tight sections, and efficient climbing. Its spacious cockpit enhances traction and cornering control, while the low bottom bracket, slack head tube angle, and optimised fork offset ensure stability on rough terrain.
The standout innovation on the Stumpjumper 15 is the GENIE air spring technology, which grants every trail rider’s three wishes: the feel and control of a coil spring, better bottom-out prevention than a standard air spring, and a tunable platform for a playful ride. The GENIE technology merges the linear spring rate of a coil spring with the progressive rate of an air spring, avoiding bottom-outs and offering unparalleled tunability. This results in 16.3% better bump force management, making the Stumpjumper 15 feel like a bike with more travel. Extensive testing has shown that it delivers 57% better traction and 39% fewer bottom-outs compared to standard air springs.
The Stumpjumper 15 stands out with its unprecedented level of customizability, featuring six distinct geometry settings for fine-tuning performance to match any riding style or terrain. You can adjust the head angle and bottom bracket for increased stability or better clearance. All coil-sprung models come with mixed wheel sizes, but with our aftermarket shock links, you have the option to use large wheels both front and rear or opt for a 27.5” rear wheel for a more responsive and playful ride without affecting the bike’s geometry. Additionally, the SWAT 4.0 system revolutionises downtube storage, providing the smoothest, most weather-resistant, and flush-mounted system available. Built to endure years of hard riding, our full suspension bikes are supported by unparalleled policies, including a lifetime no-questions-asked replacement of suspension pivot bearings for the original owner, ensuring you’re always ready for the trail.
- Lightweight FACT 11m carbon chassis and rear-end
- Robust Specialized alloy wheels with sealed cartridge bearings
- Ride Dynamics tuned FOX FLOAT Performance with Specialized GENIE patent-pending air spring technology provides maximum grip and traction found in a linear coil spring, bottom-out prevention found in a progressive air spring, and the ability to tune mid-stroke and end-stroke support independently. 2-position open and firm damper adjustments.
- Eat up the chunkiest trails with the FOX FLOAT 36 Rhythm fork with GRIP damper
- Smooth and precise shifting from SRAM Eagle T-Type AXS drivetrain
- Big braking power from SRAM Maven Bronze 4-piston brakes
- Trustworthy time and time again X-Fusion Manic dropper post
- Lifetime replacement of suspension pivot bearings to the original owner
- Compatible with electronic drivetrains only
Specifications
SWAT
SWAT 4.0 internal downtube storage
Frame
FACT 11m carbon chassis and rear-end with 145mm of travel
Seat Binder
Alloy, 38.6mm
Fork
FOX FLOAT 36 Rhythm, GRIP damper, S1:140mm, S2-S6:150mm
Rear Shock
FOX FLOAT Performance with Specialized GENIE Shock Tech, 2-position lever, S1:210x52.5mm, S2-S6:210x55mm
Stem
Alloy Trail Stem, 35mm bar bore
Saddle
Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm
Handlebars
Specialized alloy 6-degree upsweep, 8-degree backsweep. S1-S2: 780 width, 20mm rise; S3-S4: 800 width, 30mm rise; S5-S6: 800 width, 40mm rise
SeatPost
X-Fusion Manic, remote SLR LE lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 190mm
Grips
Specialized Trail Grips
Front Brake
SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 200mm
Rear Brake
SRAM Maven Bronze, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 200mm
Chain
SRAM GX Eagle Transmission Flattop Chain
Cassette
SRAM XS-1270 Transmission Cassette, 12spd, 10-52t
Bottom Bracket
SRAM DUB, BSA 73mm Wide, Threaded
Shift Levers
SRAM AXS POD Controller
Crankset
SRAM S1000 Crankset, 32T ring, Integrated Guard, 55mm Chainline, S1-S3:165mm, S4-S6: 170mm
Rear Derailleur
SRAM S1000 Eagle Transmission Derailleur
Rear Hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
Front Hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Front Tire
Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
Spokes
DT Swiss Industry
Rear Tire
Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3"
Rims
Specialized, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: S1-S2:27.5, S3- S6:29
Inner Tubes
Standard, Presta valve
Weight - Size S4
14.87kg (32 lb, 12.5 oz)
Geometry
| S1 | S2 | S3 | S4 | S5 | S6 | ||
|---|---|---|---|---|---|---|---|
| A | Reach | 400 | 425 | 450 | 475 | 500 | 530 |
| B | Stack | 608 | 618 | 627 | 640 | 654 | 667 |
| C | Headtube Angle | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 |
| D | Seat Tube Length | 385 | 385 | 405 | 425 | 445 | 465 |
| E | Front Center | 720 | 751 | 780 | 812 | 843 | 879 |
| F | Bottom Bracket Height | 334 | 337 | 337 | 337 | 337 | 337 |
| G | Bottom Bracket Drop | 41 | 38 | 38 | 38 | 38 | 38 |
| H | Wheelbase | 1149 | 1181 | 1213 | 1244 | 1285 | 1322 |
| I | Chainstay Length | 430 | 432 | 435 | 435 | 445 | 445 |
| J | Headtube Length | 95 | 100 | 110 | 125 | 140 | 155 |
| K | Top Tube Length | 541 | 573 | 595 | 624 | 647 | 677 |
| L | Seat Tube Angle | 77 | 76.5 | 77 | 76.9 | 77.3 | 77.6 |
| M | Bike Standover Height | 738 | 751 | 745 | 745 | 745 | 751 |
*ALL MEASUREMENTS IN DEGREES OR MILLIMETRES
Sizing Guide
| Size | Height | |
|---|---|---|
| Imperial | Metric | |
| S1 | 4'11" - 5'3" | 150 - 160cm |
| S2 | 5'2" - 5'8" | 157 - 173cm |
| S3 | 5'5" - 5'11" | 165 - 180cm |
| S4 | 5'8" - 6'2" | 173 - 188cm |
| S5 | 5'10" - 6'4" | 178 - 193cm |
| S6 | 6'2" - 6'8" | 188 - 203cm |
The sizing chart is a great place to start when picking your next bike but everyone will fit a bike a bit differently. Your torso, arm, and leg lengths all play into what size of bike you may need. Plus, there's your own personal preference.
We always recommend swinging by the shop and taking the bike that you're looking for a spin to see how it feels. If you're unable to come by, looking at the geometry of your current bike and comparing it is a good place to start. If you have any further questions, our customer service team is there to help.
