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SPECIALIZED

2025 Specialized Stumpjumper 15 Alloy

93325-7704

$3,000.00 USD
$3,000.00 USD $3,000.00 USD Sale Sold out
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  • GENIE Grants Every Trail Rider's Wishes

    This game-changing, patent-pending air spring technology that we invented grants every trail rider three wishes: maximum grip and traction of a coil spring feel, better bottom-out prevention than a standard air spring, and the ability to tune mid-stroke and end-stroke support independently.

  • What's Inside GENIE?

    Check out how GENIE technology combines the control-enhancing linear spring rate of a coil spring through the "bump zone" with the progressive spring rate of an air spring at the end of the stroke to reduce bottom-outs. It's the best of both worlds - coil and air - with extra tunability. Say goodbye to compromises and hello to the future of riding.

  • Unlock Your Ride with Tunable Geo

    Stumpjumper 15 Alloy boasts the planet's most capable trail geometry. With six-way adjustability, tailor your ride to perfectly match your style and terrain. Explore our interactive Geo Finder to pinpoint your ideal setting.

  • Eats Bumps Like Our Enduro

    GENIE shock technology gives the Stumpjumper 15 Alloy 16.3% better bump performance than the 'Bike of the Year' Stumpjumper EVO. It uses more travel for the same size bump, thanks to its flatter spring curve in the first 70% of travel.

  • 57% Better Traction

    GENIE delivers 57% less traction loss time than a standard air-sprung shock because GENIE technology gives you supple, coil-like performance, which keeps the wheel in contact with the ground a greater percent of the time than a typical air spring would.

  • Bye, Bye, Bottom Outs

    Send it confidently, knowing that GENIE eliminated 39% of severe bottom-out events in field testing compared to a standard FOX FLOAT air spring.
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2025 Specialized Stumpjumper 15 Alloy Features

Stumpjumper 15 Alloy is here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check. How about a heaping helping of personalization to make it perfect for the only rider who really matters—you? Check, check, check.

KINEMATICS PERFECTED: As the quintessential trail bike, Stumpjumper 15 Alloy balances efficiency and optimal bump force management. For the anti-squat on Stumpjumper 15 Alloy, we struck a balance between the previous Stumpjumper and Stumpjumper EVO, as both had excellent pedaling characteristics.

HONED GEOMETRY: This bike’s geometry delivers big bike capability when you need it, a nimble feel in tight sections, and lively, efficient climbing manners. The generous cockpit centers you on the bike, optimizing traction and corner control. The low bottom bracket, slack head tube angle, and optimized fork offset keep things stable in the rough.

RIDE YOUR WAY: The Stumpjumper 15 Alloy seamlessly integrates benchmark geo adjustability, making it the most personalizable trail bike ever. Six distinct geometry settings allow you to hone performance for any style and any terrain. The head angle and bottom bracket can be fine-tuned for stability or clearance.

FORM FOLLOWS FUN: We can make a frame as stiff as we want, but there’s such a thing as too stiff. To be one with the bike requires engineered compliance in the frame. We engineered the M5 Alloy chassis—front end, rear end, and the link between them—as a single unit that hits the stiffness target we established for trail riding.

WHEEL SIZE: All coil-sprung models come with mixed wheels.

WHEEL CHOICE: With our aftermarket link shock links, you can choose between big wheels front and rear or mix things up with a 27.5” rear for a more responsive and playful ride. No matter what you choose, geometry is unaffected.

CARRY IT ALL: SWAT on Stumpjumper 15 elevates downtube storage, an innovation we pioneered.

Product Specifications

Brakes

Shimano, BR-MT420, 4-piston caliper, hydraulic disc

Cassette

Shimano Deore, M6100, 12spd w/Hyperglide+, 10-51t

Chain

Shimano Deore, M6100, 12-speed

Crankset

Shimano Deore, M6120, 30T ring, 55mm chainline, S1-S3:165mm, S4-S6: 170mm

Fork

RockShox, Psylo Silver, Motion Control Damper, 15x110 axle, 44mm offset, S1:140mm of travel, S2-S6:150mm of travel

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

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

Rear Derailleur

Shimano Deore, M6100, 12pd, Shadow Plus

Saddle

Bridge, Steel rails, S1-S2: 155mm, S3-S6: 143mm

Seatpost

TranzX Dropper, remote SLR LE lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 200mm

Shifters

Shimano Deore, M6100, 12spd

Tires

FRONT: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3" REAR: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3"

Wheels

Specialized Alloy, Tubeless Ready, 29mm internal width, 28h, Front: 29, Rear: S1-S2: 27.5, S3- S6: 29

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