The Specialized Stumpjumper 15 Comp Alloy is a full-suspension trail bike, engineered to provide ultimate control, efficiency, and durability on technical terrain and fast-flowing trails. Featuring an advanced aluminum frame, modern suspension technology, and high-performance components, this bike offers exceptional handling and responsiveness, making it a top choice for serious trail riders.
Premium Alloy Frame for Strength & Agility
The Stumpjumper 15 Comp Alloy features a hydroformed and butted aluminum frame, optimized for lightweight strength and stiffness. Designed with modern trail geometry, internal cable routing, and enhanced durability, this frame ensures precise control and efficient power transfer while maintaining a sleek, future-proof design.
Next-Level Suspension Performance
With RockShox 35 Gold RL fork and a custom-tuned rear shock, this bike delivers progressive suspension kinematics, improving small-bump sensitivity, traction, and control on technical trails and high-speed descents. The optimized anti-squat characteristics enhance pedaling efficiency, while the progressive geometry provides superior stability on rough terrain.
Smooth Drivetrain & Powerful Braking
The SRAM GX Eagle 12-speed drivetrain offers precise and smooth shifting, ensuring efficient climbing and stable descending. SRAM G2 hydraulic disc brakes provide exceptional stopping power and modulation, giving you confidence on steep and technical descents.
Tubeless-Ready Wheelset for Ultimate Traction
Built with Formula hubs and durable alloy rims, the Stumpjumper 15 Comp Alloy features tubeless-ready wheels for enhanced grip, lower rolling resistance, and increased durability, ensuring a smoother and more controlled ride.
Why choose this bike?
✅ Premium alloy frame – lightweight, strong, and engineered for aggressive trail riding.
✅ Full-suspension setup – optimized front and rear suspension for superior control.
✅ SRAM GX Eagle 12-speed drivetrain – wide-range gearing for any terrain.
✅ SRAM G2 hydraulic disc brakes – powerful and precise stopping performance.
✅ Tubeless-ready wheels – improved traction and durability on technical trails.
Key Features
Frame: Butted & hydroformed aluminum, internal cable routing, modern trail geometry
Fork: RockShox 35 Gold RL, adjustable air spring, 150mm travel
Rear Shock: Custom-tuned air shock, efficient pedaling platform
Drivetrain: SRAM GX Eagle 12-speed
Brakes: SRAM G2 hydraulic disc brakes
Wheels: Tubeless-ready alloy rims, optimized for stability and durability
Who is this bike for?
The Specialized Stumpjumper 15 Comp Alloy is ideal for trail riders, all-mountain adventurers, and those looking for a capable, full-suspension bike that balances performance, durability, and value. Whether you're tackling steep descents, navigating rock gardens, or flowing through high-speed trails, this bike delivers top-tier control and versatility.
Brand |
Specialized
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Accessories/Pedals |
PEDAL, TEST RIDE PEDALS PROVIDED BY SPECIALIZED
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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
|
Wheels/Spokes |
DT Swiss Industry
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Wheels/Rims |
Specialized, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: S1-S2: 27.5, S3- S6: 29
|
Wheels/Rear tire |
Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, S1-S2: 27.5x2.3, S3- S6: 29x2.3"
|
Wheels/Rear hub |
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
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Wheels/Inner tubes |
Standard, Presta valve
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Wheels/Front tire |
Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
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Wheels/Front hub |
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
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Suspension/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
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Suspension/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
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Frameset/Seat binder |
Alloy, 38.6mm
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Drivertain/Shift levers |
Shimano SLX, M7100, 12spd
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Drivertain/Rear derailleur |
Shimano SLX M7100, SGS, 12-speed
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Drivertain/Crankset |
Shimano SLX, M7120, 32T ring, 55mm chainline, S1-S3:165mm, S4-S6: 170mm
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Drivertain/Chain |
Shimano SLX, M7100, 12-speed
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Drivertain/Cassette |
Shimano SLX, CS-M7100, 12-speed, 10-51t
|
Cockpit/Stem |
Alloy Trail Stem, 35mm bar bore
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Cockpit/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
|
Cockpit/Saddle |
Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm
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Cockpit/Handlebars |
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
|
Cockpit/Grips |
Specialized Trail Grips
|
Brakes/Rear brake |
TRP Trail EVO, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 203mm
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Brakes/Front brake |
TRP Trail EVO, 4-piston caliper, hydraulic disc, 203mm
|
Accessories/Swat |
SWAT internal downtube storage
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