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Specialized

Stumpjumper 15 Alloy

2025Mountain - Trail
Stumpjumper 15 Alloy Data
MSRP
USD 2199.99
Frame
M5 Alloy
Travel
Front: 160mm, Rear: 145mm
Gears
12
Weight
16900 kg
Sizes
S1, S2, S3, S4, S5, S6
Colors
Gloss White Mountains / Dark Moss Green

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Components

Complete component specification list for this variant.

Drivetrain

Bottom Bracket
Shimano BB-MT801
Bottom bracket
Standard
Threaded
Rear Derailleur
Shimano SLX, M7100, SGS
Back Derailleur
Gears
12
Rear Shifter
Shimano SLX, M7100
Back Shifter
Chainring
Shimano SLX, M7120
Front Chainring
Ring 1
32 Teeth
Chain
Shimano SLX, M7100
Chain
Gears
12
Crank
Shimano SLX, M7120
Crank
Length
170
Cassette
Shimano Deore M6100 w/Hyperglide+
Cassette
Number of sprockets
12
Range
10-51t

Cockpit

Stem
Deity Deity
Stem
Length
42 mm
Clamping diameter
35 mm
Handlebar
Deity Racepoint
Handlebar
Width
810 mm
Clamping diameter
35 mm
Material
Alloy
Grips
Deity Knuckleduster
Grips

Seat

Seatpost Clamp
Alloy, 38.6mm
Seatpost Clamp
Saddle
Bridge Comp, Hollow Cr-mo rails
Saddle
Seatpost
PNW Loam OE Dropper, tool-less travel adjust
Seatpost
Diameter
34.9 mm
Dropper post
1
Travel
200 mm

Wheels

Front
Front Tire
Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready (29x2.3", 2.3")
Front Tire
Size
29x2.3"
Width
2.3"
Front Wheel
DT Swiss Roval Traverse / 370 (29, 15x110mm)
Front Wheel
Size
29
Axle Dimension
15x110mm
Tubeless
1
Inner width
30 mm
Material
Alloy
Rear
Rear Tire
Eliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready (27.5x2.3", 2.3")
Back Tire
Size
27.5x2.3"
Width
2.3"
Rear Wheel
DT Swiss Roval Traverse / 370 (27.5, 12x148mm)
Back Wheel
Size
27.5
Axle Dimension
12x148mm
Tubeless
1
Inner width
30 mm
Material
Alloy

Brakes

Front
Front Brake
TRP DH-R EVO
Front Brake
Front Disc
TRP TRP
Front Disc
Diameter
220 mm
Rear
Rear Brake
TRP DH-R EVO
Back Brake
Rear Disc
TRP TRP
Back Disc
Diameter
203 mm

Frame

Frame
chassis and rear-end, Trail Geometry, SWAT™ Door integration
Frame
Rear Axle Dimension
12x148mm
Material
M5 Alloy
Rear Shock
FACT FOX DHX ory, Ride Dynamics Trail Tune
Rear Shock
Travel
145 mm
Fork
FACT FOX FLOAT 38 ory, GRIP X2 damper
Fork
Travel
160 mm
Front Axle Dimension
15x110mm
Offset
44 mm