The Specialized Stumpjumper 15 with GENIE gives me the advantages of a bike with generous travel, and also those of a bike with reduced travel, all together. - Allan Cooke. The Stumpjumper 15 eliminates any compromise in the world of trail. Devouring big obstacles like a bike with generous travel? Done. Control, playfulness, and efficiency like an XC bike? Done. Extensive customization options to make it perfect for the only biker that really matters: you? Done, done, done. REVOLUTIONARY CAPACITY: The GENIE technology combines a snappy and playful ride with a feel of downhill travel. SUPREME CONTROL: Tangibly better traction compared to the 'Bike of the Year', the Stumpjumper EVO. CUSTOMIZATION: Six geometry settings, mullet setup or 29er wheels, adjustable compression curve, and more. GENIE—The magic carpet: The biggest innovation on the Stumpjumper 15 is GENIE. This patent-pending air spring technology we invented fulfills the three wishes of every cyclist: the feel and control of a coil spring, better bottom-out prevention compared to a standard air spring, and an adjustable platform for a playful feel. THE 'GENIUS': GENIE combines the linear stiffness of the coil spring that improves control through the 'impact zone' with the progressive curve of the air spring at the end of the stroke to avoid bottoming out. Truly, it's the best of both worlds – coil and air – with extra adjustment possibilities. So goodbye to compromises and welcome to the future of suspension. WHICH IMPACT?: With 16.3% better shock force management compared to a traditional air spring shock, GENIE makes the Stumpy 15 perform like a bike with greater travel. For example, the Stumpjumper 15 (with 145 mm rear wheel travel) and our Enduro (170 mm travel) both use 101 mm of travel to absorb an impact force of 1080 N. TRACTION A GOGO: In-depth field tests show that the Stumpjumper 15 with GENIE provides 57% better traction compared to a standard air spring shock because GENIE technology offers flexible performance, similar to a coil spring, that keeps the wheel in contact with the ground for a larger percentage of the time compared to a typical air spring. GOODBYE BOTTOM OUT: 39% fewer bottom-out events compared to a standard air spring. In the case of big impacts, you will benefit from the progressive curve in the last 30% of the GENIE stroke. Thanks to its two-phase behavior, GENIE reduces the frequency and severity of bottom-out events. PERFECTED GEOMETRY: The geometry of this bike offers great capability when needed, agility in tight sections, and efficiency uphill. The wide cockpit centers you on the bike, optimizing traction and cornering control. The low bottom bracket, relaxed head angle, and optimized fork offset promote stability even on technical terrain. YOUR WAY: The Stumpjumper 15 perfectly integrates geometry adjustment, making it the most customizable trail bike ever. Six distinct geometry settings allow you to fine-tune performance for any style and terrain. The head angle and bottom bracket height can be precisely adjusted to ensure stability or clearance. WHEEL CHOICE: With our aftermarket links, you can choose between large wheels on both the front and rear, or you can use a 27.5" rear wheel for a more responsive and playful ride. Whatever you choose, the geometry is not affected. CARRY EVERYTHING YOU NEED: The SWAT 4.0 compartment on the Stumpjumper 15 increases space in the tube. oblique.
- Frame: M5 Alloy chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel.
- Seat Collar: Alloy, 38.6mm.
- Fork: FOX FLOAT 36 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset, S1:140mm of travel, S2-S6:150mm of travel.
- Rear Shock: FOX FLOAT Performance with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever w/ LSR adjustment, S1:210x52.5mm, S2-S6:210x55mm.
- Chain: Shimano SLX, M7100, 12-speed.
- Bottom Bracket: Shimano, BB-MT801, Threaded.
- Crankset: Shimano SLX, M7120, 32T ring, 55mm chainline, S1-S3:165mm, S4-S6: 170mm.
- Rear Derailleur: Shimano SLX, M7100, SGS, 12-speed.
- Freewheel: Shimano SLX, CS-M7100, 12-speed, 10-51t.
- Shift Levers: Shimano SLX, M7100, 12spd.
- SWAT Components: SWAT internal downtube storage.
- Front Brake: TRP Trail EVO, 4-piston caliper, hydraulic disc, 203mm.
- Rear Brake: TRP Trail EVO, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 203mm.
- 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".
- Rear Hub: Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h.
- Rims: Specialized, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: S1-S2: 27.5, S3- S6: 29.
- Inner Tubes: Standard, Presta valve.
- Stem: Alloy Trail Stem, 35mm bar bore.
- Seat: Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm.
- Grips: Specialized Trail Grips.
- Handlebar: Specialized, 6000 series 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, infinite adjustable, two-bolt head, bottom mount cable routing, remote SLR LE lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 190mm.
- Weight S4: 16.17 kg (35 lb, 10.4 oz).
- Color: Purple (Satin Powder Indigo / Smoke).
