Stumpjumper 15 Expert Di2 (2026)

One Bike to Rule All Trails

Capability, Control, Personalization

The all-new Stumpjumper 15 EVO obliterates every trade-off in the trail game. It’s the ‘Bike of the Year’ winning Stumpy 15 you know, turned up to 11—with a longer-travel 160mm FOX fork, external reservoir FOX FLOAT X shock, and a slacker headtube for next-level capability. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check. A heaping helping of personalization to make it perfect for the only rider who matters—you? Check, check, check.

At a Glance

• Use: Trail
• Frameset: FACT 11m carbon chassis w/ SWAT
• Suspension: Front: 160mm FOX FLOAT 36 Performance Elite, GRIP X2
  Rear: 145mm FOX FLOAT X GENIE Performance Elite
• Drivetrain: Shimano XT Di2
• Wheels: Traverse Alloy/DT Swiss 370
• Weight:31lbs. 14.8oz.

Frameset

Seat Binder
Alloy, 38.6mm

Frame
FACT 11m carbon chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal brake and dropper cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm travel

Suspension

Fork
FOX FLOAT 36 Performance Elite, GRIP X2 damper, HS & LS rebound and compression adjustment, 15x110mm Kabolt axle, 44mm offset

• S1: 150mm travel
• S2–S6: 160mm travel

Rear Shock
FOX FLOAT X Performance Elite w/ Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever, LSC adjustment, LSR adjustment, 210x55mm

Brakes

Front Brake
Shimano Deore XT, 4-piston, metal pad w/ fin, 203mm rotor

Rear Brake
Shimano Deore XT, 4-piston, metal pad w/ fin

• S1–S2: 180mm rotor
• S3–S6: 203mm rotor

Drivetrain

Shift Levers
Shimano XT Di2

Rear Derailleur
Shimano XT Di2, 12-speed

Chain
Shimano XT M8100, 12-speed w/ quick link

Cassette
Shimano XT M8200, 12-speed, 10-51t

Crankset
Shimano XT, 55mm chainline, 32t

• S1–S3: 165mm
• S4–S6: 170mm

Bottom Bracket
Shimano BB-MT801, threaded

Wheels & Tires

Front Tire
Butcher, GRID Trail casing, GRIPTON® T9 compound, TLR, 29×2.4

Rear Tire
Eliminator, GRID Trail casing, GRIPTON® T7 compound, TLR

• S1–S2: 27.5×2.4
• S3–S6: 29×2.4

Front Wheel
Roval Traverse 29″, hookless alloy, 30mm internal width, tubeless-ready, DT Swiss 370 hub, 15x110mm, 28h, Sapim Force spokes, 6-bolt

Rear Wheel
Roval Traverse, hookless alloy, 30mm internal width, tubeless-ready, DT Swiss 370 hub, 15x110mm, 28h, Sapim Force spokes, 6-bolt

Inner Tubes
Standard, Presta valve

Cockpit

Stem
Alloy Trail Stem, 35mm bar bore

Saddle
Bridge Comp, hollow Cr-Mo rails

• S1–S2: 155mm
• S3–S6: 143mm

Grips
Deity Lockjaw Grips

Seatpost
PNW Loam Dropper, tool-less travel adjust, Range lever, 34.9mm

• S1: 125mm
• S2: 150mm
• S3: 175mm
• S4–S5: 200mm
• S6: 225mm

Handlebars
Specialized 6000 series alloy, 6° upsweep, 8° backsweep

• S1–S2: 780mm width, 20mm rise
• S3–S6: 800mm width, 50mm rise

Accessories

SWAT
SWAT 4.0 internal downtube storage

Product Details

Product ID
291645

Weight (Size S4)
14.48 kg (31 lb, 14.8 oz)