Enduro Mountain Bike Magazine named the Stumpjumper 15 the "Best Bike in Test." It stands out from the competition and the most advanced Trail bikes of the year. With its GENIE suspension, balanced handling, and versatility, the Stumpjumper 15 is truly THE bike to dominate every Trail.

Ride the trails like the pros with the Stumpjumper 15 Alloy. This bike checks all the boxes: it tackles bumps like a long-travel bike, is precise, fun, and efficient with just the right amount of travel, and offers many customization options to make this bike the ultimate mountain bike in your eyes. Get on and dominate the trails.

REFINED KINEMATICS — The essence of a Trail bike, the Stumpjumper 15 Alloy combines performance with optimal impact force management. Regarding anti-squat, we found the perfect balance between the previous Stumpjumper and the Stumpjumper EVO, two bikes synonymous with pedaling efficiency excellence.

OPTIMIZED GEOMETRY: The geometry of this mountain bike offers great abilities when you need them, a feeling of agility in twisty sections, and sharp, efficient climbing capabilities. The wide handlebar centers you on the bike, optimizing traction and control in turns. The low bottom bracket, slack head tube angle, and optimized fork offset ensure bike stability on challenging terrain.

RIDE YOUR WAY — The Stumpjumper 15 Alloy and its easily adjustable geometry make this bike the most customizable Trail bike ever designed. Its six different geometry adjustment options allow you to tailor its performance to all styles and terrains. The head tube angle and bottom bracket height can also be adjusted to offer more or less stability or clearance.

FORM FOLLOWS FUN — We can build an ultra-stiff frame, but not too much. To become one with your bike, you need a frame designed to offer maximum comfort. We developed each part of our M5 aluminum chassis (front, rear, and the linkage in the middle) individually to meet the stiffness requirements of Trail bikes.

WHEEL SIZE — All coil spring models come equipped with mixed wheels.

WHEEL CHOICE — With our separately available linkages, you can choose the speed, traction, and benefits of large wheels front and rear (option available on sizes S3, S4, S5, S6), or opt for mixed wheels with a 27.5" rear wheel for more responsive and fun handling. Whatever your choice, changing wheel size will not affect the Stumpjumper 15’s geometry characteristics.

GO FULLY EQUIPPED — Our SWAT storage hatch, an innovation we developed, increases the storage capacity of the Stumpjumper 15’s down tube.

TOUGHER THAN YOU — Our full-suspension bikes are designed to be durable, offer unmatched longevity, and withstand impacts without flinching for years. Beyond these technical advantages, Specialized also goes all out to ensure you enjoy the trails long-term through its customer service, policies, and warranties, which include, for example, simple replacement of your suspension pivot bearings upon request.

FEATURES:

Frame:

• 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
• SWAT internal downtube storage

Suspension:

• Rear shock: X-Fusion 02 Pro RL, Ride Dynamics Trail Tune, rebound adjust, lockout S1:210x52.5mm, S2-S6:210x55mm
• Fork: RockShox, Psylo Silver, Motion Control Damper, 15x110 axle, 44mm offset, S1:140mm of travel, S2-S6:150mm of travel

Brakes:

• Front brake: Shimano, BR-MT420, 4-piston caliper, hydraulic disc, 203mm
• Rear brake: Shimano, BR-MT420, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 203mm

Drivetrain:

• Shifter: Shimano Deore, M6100, 12spd
• Rear derailleur: Shimano Deore, M6100, 12spd, Shadow Plus
• 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

Wheels:

• Rims: Specialized Alloy, Tubeless Ready, 29mm internal width, 28h, Front: 29", Rear: S1-S2: 27.5", S3-S6: 29"
• Front hub: Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
• Rear hub: Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
• Front tire: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
• Rear tire: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3-S6: 29x2.3"
• Tubes: Standard, Presta valve
• Spokes: Stainless, 14g

Cockpit:

• Stem: Alloy Trail Stem, 35mm bar bore
• Handlebar: Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2: 780mm width, 20mm rise; S3-S4: 800mm width, 30mm rise; S5-S6: 800mm width, 40mm rise
• Grips: Specialized Trail Grips
• Saddle: Bridge, Steel rails, S1-S2: 155mm, S3-S6: 143mm
• Seatpost: TranzX Dropper, remote SLR LE lever, 34.9mm, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 200mm