Specialized Stumpjumper 15 Comp Mountain Bike 2025
The Stumpjumper 15 obliterates trail game trade-offs with GENIE Shock Technology, offering a poppy, playful ride and bottomless DH feel, surpassing the traction of the award-winning Stumpjumper EVO. Its six-way geometry adjustment, tunable spring curve, and mixed wheel options deliver unmatched personalization. GENIE combines coil-spring control with air-spring bottom-out prevention, providing 16.3% better bump force management and 57% improved traction. The honed geometry ensures big bike capability, nimble handling, and efficient climbing. Features like SWAT 4.0 storage, robust Specialized alloy wheels, and a reliable SRAM Eagle T-Type AXS drivetrain underscore its relentless, customized performance, backed by a lifetime suspension pivot bearing replacement guarantee for original owners.
Technical Specification
| SWAT | SWAT 4.0 internal downtube storage |
| Frame | FACT 11m carbon chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal brake and dropper cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel |
| Seat Binder | Alloy, 38.6mm |
| Fork | FOX FLOAT 36 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset, S1 |
| Rear Shock | FOX FLOAT Performance with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever w/ LSR adjustment, S1 |
| Stem | Alloy Trail Stem, 35mm bar bore |
| Saddle | Bridge Comp, Hollow Cr-mo rails, S1-S2 |
| Handlebars | Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2 |
| SeatPost | X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SLR LE lever, 34.9, S1 |
| Grips | Specialized Trail Grips |
| Brakes | |
| Front Brake | SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 200mm |
| Rear Brake | SRAM Maven Bronze, 4-piston caliper, hydraulic disc, S1-S2 |
| Drivetrain | |
| 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 |
| Rear Derailleur | SRAM S1000 Eagle Transmission Derailleur |
| Wheels & Tires | |
| 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 |
| Rims | Specialized, hookless alloy, 30mm inner width, tubeless ready, Front |
| Inner Tubes | Standard, Presta valve |
| Product Details | |
| Weight | 14.87kg (32 lb, 12.5 oz) |
| Weight Size | S4 |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
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Why buy your bike from Sigma Sports?
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