The Stumpjumper 15 EVO Alloy is built to crush every trail trade-off—delivering big-bike bump absorption, short-travel playfulness, and ultimate customization in one package.
At its heart is our groundbreaking GENIE Shock Technology, blending coil-like grip and traction with air-spring bottom-out control and tunable support. The result? Up to 57% better traction, 39% fewer bottom-outs, and a ride that feels like more travel than its 145 mm rear suspension suggests.
Frameset
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 Binder: Alloy, 38.6mm
Suspension
Rear Shock: FOX FLOAT X Performance with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever, LSR adjustment, 210x55mm
Fork: FOX FLOAT 36 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset S1:150mm of travel, S2-S6:160mm of travel
Brakes
Front Brake: SRAM DB8 Stealth
Rear Brake: SRAM DB8 Stealth
Drivetrain
Shift Levers: SRAM EAGLE 70
Rear Derailleur: SRAM Eagle 70 T-Type
Cassette: SRAM 1270 Transmission Cassette, 12 Spd,10-52t
Chain: SRAM 70 Transmission Chain
Crankset: SRAM Eagle 70, 55mm chainline, 32T
Bottom Bracket: SRAM DUB Threaded Wide
Wheels & Tires
Rims: Specialized, hookless alloy, 30mm inner width, tubeless ready
Front Hub: Specialized alloy front hub disc, sealed cartridge bearings, 6-bolt, 15x110mm thru-axle, 28h
Rear Hub: Specialized alloy rear hub disc, sealed cartridge bearings, 6-Bolt, 12X148mm thru-axle, 28h, HD Steel Fhb
Spokes: DT Swiss Elemental
Front Tire:Butcher, GRID TRAIL casing, Gripton T9 compound, 29X2.4
Rear Tire: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, TLR, S1-S2: 27.5x2.4, S3- S6: 29x2.4"
Inner Tubes: Standard, Presta Valve
Cockpit
Stem: Alloy Trail Stem, 35mm bar bore
Handlebars: Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2: 780 width, 20mm rise: S3-S6: 800 width, 50mm rise
Grips: Specialized Trail Grips
Saddle: Bridge Comp, Hollow Cr-mo rails S1-S2: 155mm, S3-S6:143mm
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
Accessories
SWAT: Internal SWAT Downtube Storage
Product Details
Product ID: 221474
Weight
Weight: 16.55 kg (36 lb, 7.8 oz)
Weight Size: S4
Every bike is professionally assembled, tuned, and tested before shipping. It is then partially disassembled and packed for shipping. Some assembly is required upon arrival. We recommend professional assembly or having a professional check your work. Damage caused during assembly makes the bike ineligible for return.
We charge a flat rate for bike shipping. See the rates here. Most bikes ship within 1 business day, with transit times of 3–7 days.
Returns are within 14 days if the bike is unused, in like-new condition, and in original packaging. Once ridden outside, bikes are non-returnable. Details here.
For questions, contact us here.