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Stumpjumper 15 Alloy is here to obliterate every trade-off in the trail game.
Stumpjumper 15 Alloy is here to obliterate every trade-off in the trail game.
Specialized

Specialized Stumpjumper 15 Alloy Mountain Bike - Gloss White Mountains/Dark Moss Green

£2,750.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Specialized Stumpjumper 15 Alloy Mountain Bike - Gloss White Mountains/Dark Moss Green

Season:2025

Brand:Specialized

Code:42762395437114

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.

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

This bike’s geometry delivers big bike capability when needed, a nimble feel in tight sections, and lively, efficient climbing manners. The generous cockpit centers the rider 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.

Features:

  • Six distinct geometry settings for performance tuning.
  • M5 Alloy chassis engineered for trail riding stiffness.
  • Mixed wheel options for coil-sprung models.
  • SWAT downtube storage innovation.
  • Lifetime replacement of suspension pivot bearings.
  • Ride Dynamics tuned X-Fusion 02 Pro RL shock.
  • RockShox Psylo Silver fork with Motion Control Damper.
  • Reliable Shimano MT-420 4-piston brakes.
  • 12-speed Shimano Deore drivetrain.
Technical Information
  • 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
  • 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
  • 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
  • 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
  • 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, 29x2.3"
  • Rear Tire
    Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3"
  • Inner Tubes
    Standard, Presta valve
  • 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 ID
    276239
  • Weight
    16.57 kg (36 lb, 8.5 oz)
  • Weight Size
    S4
Sizing Information
S1S2S3S4S5S6
Crank Length165mm165mm165mm170mm170mm170mm
Handlebar Width780mm780mm800mm800mm800mm800mm
Stem Length40mm40mm40mm40mm40mm40mm
Saddle Width155mm155mm143mm143mm143mm143mm
Seatpost Length125mm150mm170mm190mm190mm190mm
Stack608mm618mm627mm640mm654mm667mm
Reach400mm425mm450mm475mm500mm530mm
Headtube Length95mm100mm110mm125mm140mm155mm
Headtube Angle64.5°64.5°64.5°64.5°64.5°64.5°
BB Height334mm337mm337mm337mm337mm337mm
BB Drop41mm38mm38mm38mm38mm38mm
Trail129mm130mm130mm130mm130mm130mm
Fork Length (full)551mm561mm561mm561mm561mm561mm
Fork Rake/Offset44mm44mm44mm44mm44mm44mm
Front Center720mm751mm780mm812mm843mm879mm
Chainstay Length430mm432mm435mm435mm445mm445mm
Wheelbase1149mm1181mm1213mm1244mm1285mm1322mm
Top-tube Length (horizontal)541mm573mm595mm624mm647mm677mm
Bike Standover Height738mm751mm745mm745mm745mm751mm
Seat Tube Length385mm385mm405mm425mm445mm465mm
Seat Tube Angle78°77°77°76.5°76.5°76.5°
Saddle Height for Effective ST Angle645mm690mm735mm780mm825mm870mm
Max Seatpost Insertion245mm245mm255mm255mm285mm285mm
Min Seatpost Insertion80mm80mm80mm80mm80mm80mm
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