Specialized Stumpjumper 15 ALLOY White Mountains / Dark Moss Green S3

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

  Technical Specifications

  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 S1:210×52.5mm, S2-S6:210x55mm

  Fork

  RockShox, Psylo Silver, Motion Control Damper, 15×110 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

  Shift Levers

  Shimano Deore, M6100, 12spd

  Rear Derailleur

  Shimano Deore, M6100, 12pd, 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 & Tires

  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

  Spokes

  Stainless, 14g

  Front Tire

  Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29×2.3″

  Rear Tire

  Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5×2.3, S3- S6: 29×2.3″

  Inner Tubes

  Standard, Presta valve

  Cockpit

  Stem

  Alloy Trail Stem, 35mm bar bore

  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

  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

  Product Details

  Product ID

  276239

  Weight

  Weight

  16.57 kg (36 lb, 8.5 oz)

  Weight Size

  S4

  * Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.