Front travel
150 mm
This value is above the central range for this class.
Specialized Stumpjumper 15 Alloy - RockShox/X-Fusion Shimano Deore
1 of 6
Specialized Stumpjumper 15 Alloy - RockShox/X-Fusion Shimano Deore
1 of 6
- $2,999
- 150 / 145
- 29″ / 27.5″
- 1 × 12
- 510%
- 16.57
- Aluminum
- Hydraulic disc
Rider height by size (cm)
Size guide- S1
- S2
- S3
- S4
- S5
- S6
Components
Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.
Frame and fork
-
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
Suspension
-
Fork
-
Rear shock
Drivetrain
-
Bottom bracket
BSA, 73mm, threaded
-
Cassette
CS-M6100
-
Chain
CN-M6100
-
Crankset
FC-M6120
-
Rear derailleur
RD-M6100
-
Shifters
SL-M6100
Brakes
-
Brakes
BR-MT420
Wheels and tires
-
Front hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
-
Rear hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
-
Rims
-
Spokes
Stainless, 14g
-
Tires
Front: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3", Rear: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3"
Cockpit and contact points
-
Grips
-
Handlebar
-
Saddle
Bridge, Steel rails, S1-S2: 155mm, S3-S6: 143mm
-
Seatpost
-
Stem
Alloy Trail Stem, 35mm bar bore
Sizes and geometry
Size explorer
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
- Bicycle weight
-
- 16.57 kg
- 36.5 lb
Suspension
- Suspension configuration
-
- Full suspension
- Front travel
-
- 150 mm
- Rear travel
-
- 145 mm
Drivetrain
- Front chainrings
-
- 1
- Smallest chainring
-
- 30
- Largest chainring
-
- 30
- Rear sprockets
-
- 12
- Smallest sprocket
-
- 10
- Largest sprocket
-
- 51
- Lowest gear
-
- 16.2 in
- Highest gear
-
- 82.5 in
Wheels and brakes
- Wheel configuration
-
- Different sizes
- Brake type
-
- Hydraulic disc
Fit and controls
- Derailleur hanger
-
- UDH
- Seatpost
-
- Dropper seatpost
- Shifting
-
- Mechanical
Additional specifications
- Bottom bracket standard
-
- BSA
- Tire width
-
- 2.3″
- Wheel material
-
- Aluminum
- Wheel size
-
- 29″, 27.5″
Technical analysis
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Lowest gear
16.2 gear inches
This value is below the central range for this class.
Highest gear
82.5 gear inches
This value is below the central range for this class.
Shifting
Mechanical
387 of 1,847 bicycles with this information use electronic shifting.
Gearing
This bicycle
- 6.2
- 31.6
Lineup changes
The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.
Differences across 2025 builds
Other models in this family
Published versions from the same family and model year.
Stumpjumper 15 Alloy - RockShox/X-Fusion Shimano Deore
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