Specialized Stumpjumper 15 Alloy 2025

Specialized Stumpjumper 15 Alloy 2025IN STORE PICK UP ONLY 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 mattersyou? Check, check, check. KINEMATICS PERFECTED: As the quintessential trail bike, Stumpjumper 15 Alloy balances efficiency and optimal bump force

 IN STORE PICK-UP ONLY

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.

MORE RELENTLESS THAN YOU: Our full-suspension bikes are built to be relentless, designed to endure years of hard riding, and backed by the best support and programs to keep you on the trail. Our unbeatable lifetime, no-questions-asked replacement suspension pivot bearings to the original owner is just one way we've got you covered.

All-new M5 alloy frame with SWAT door integration

Ride Dynamics tuned X-Fusion 02 Pro RL shock with adjustable rebound and lockout

RockShox Psylo Silver fork with Motion Control Damper

Reliable Shimano MT-420 4-piston brakes

12-speed Shimano Deore drivetrain

Lifetime replacement of suspension pivot bearings to the original owner

Specification

Frameset

SWAT
SWAT internal downtube storage
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
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
Rear Brake
Shimano, BR-MT420, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 203mm
Front Brake
Shimano, BR-MT420, 4-piston caliper, hydraulic disc, 203mm
Drivetrain
Chain
Shimano Deore, M6100, 12-speed
Crankset
Shimano Deore, M6120, 30T ring, 55mm chainline, S1-S3:165mm, S4-S6: 170mm
Cassette
Shimano Deore, M6100, 12spd w/Hyperglide+, 10-51t
Rear Derailleur
Shimano Deore, M6100, 12pd, Shadow Plus
Shift Levers
Shimano Deore, M6100, 12spd
Wheels & tires
Rear Tire
Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3"
Rear Hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
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
Spokes
Stainless, 14g
Inner Tubes
Standard, Presta valve
Front Tire
Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
Cockpit
Stem
Alloy Trail Stem, 35mm bar bore
Saddle
Bridge, Steel rails, S1-S2: 155mm, S3-S6: 143mm
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
Grips
Specialized Trail Grips
SeatPost
TranzX Dropper, remote SLR LE lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 200mm
Product details
Product ID
276239
Weight
Weight
16.57 kg (36 lb, 8.5 oz)
Weight Size
S4