Specialized Stumpjumper Comp Alloy - Fox Rhythm SRAM NX Eagle

Name: Specialized Stumpjumper Comp Alloy - Fox Rhythm SRAM NX Eagle
Brand: Specialized

2023 MountainTrail Manufacturer page

Specialized Stumpjumper Comp Alloy - Fox Rhythm SRAM NX Eagle, color Satin Gunmetal / Taupe

Travel: 140 / 130 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 11–50t
Gear range: 455%
Weight: 15 kg 33.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

S2 157.5–172.7
S3 165.1–180.3
S4 172.7–188
S5 177.8–193
S6 188–203.2
S1 149.9–160

Components

16 of 20 identified

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

1 part

Frame

Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

1 part

Brakes
- SRAM G2

Wheels and tires

5 parts

Front hub
- Specialized
Rear hub

Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h Not identified
Rims
- Specialized
Spokes
- DT Swiss
Tires

Front: Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3", Rear: Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3" Not identified

Cockpit and contact points

5 parts

Grips
- Specialized
Handlebar
- Specialized
Saddle
- Ritchey Comp
Seatpost
- X-Fusion
Stem

Alloy Trail Stem, 35mm bar bore Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size S4

Table

Reach 475mm

Stack 631mm

Wheelbase 1241mm

Head angle 65.0°

Seat angle 77.2°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	430	450	475	500	530	410
Stackmm	613	623	631	639	649	618
Top tube lengthmm	545	563	586	615	643	676
Seat tube lengthmm	385	405	425	445	465	385
Head tube lengthmm	110	120	130	140	100	100
Head tube angle	65°	65°	65°	65°	65°	65°
Seat tube angle	77.7°	77.5°	77.2°	77°	76.9°	77.7°
Chainstay lengthmm	454	444	444	444	444	454
Wheelbasemm	1188	1212	1241	1280	1315	1168
Front centermm	746	770	799	828	863	726
Bottom bracket dropmm	42	42	42	42	42	47
Bottom bracket heightmm	332	332	332	332	332	327
Standover heightmm	742	750	753	777	784	742
Fork rakemm	44	44	44	44	44	44
Trailmm	126	126	126	126	126	126
Stack/reach ratio	1.43	1.38	1.33	1.28	1.23	1.51
Suspension and parts
Crank lengthmm	170	170	170	170	175	165
Handlebar widthmm	780	780	780	780	780	780
Stem lengthmm	40	40	40	50	50	40

Not published by the manufacturer: Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 15 kg

33.1 lb

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 84.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.3″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2023
Sample: 2,192 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2023
Sample: 1,625 bicycles with this information
Coverage: 72.2% of the class

Highest gear

84.4 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2023
Sample: 1,625 bicycles with this information
Coverage: 72.2% of the class

Shifting

Mechanical

359 of 2,248 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2023
Sample: 2,248 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 32.3 km/h

Total gear range 455%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.6–84.4 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2023
Lowest gear: 1625 bicycles with this information, 72.2% of the class
Highest gear: 1625 bicycles with this information, 72.2% of the class

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 2023 builds

Differences across 2023 builds
Specification	This bicycle Specialized Stumpjumper Comp Alloy - Fox Rhythm SRAM NX Eagle	Specialized Stumpjumper Alloy	Specialized Stumpjumper Alloy - Rockshox/X-Fusion SRAM SX Eagle	Specialized Stumpjumper Comp	Specialized Stumpjumper Comp Alloy	Specialized Stumpjumper Comp - FOX Rhythm SRAM GX Eagle
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Aluminum	Carbon
Bicycle weight	15 kg	15.93 kg	15.93 kg	13.86 kg	15 kg	13.86 kg
Drivetrain
Smallest chainring	32	30	30	32	32	32
Largest chainring	32	30	30	32	32	32
Smallest sprocket	11	11	11	10	11	10
Largest sprocket	50	50	50	52	50	52
Lowest gear	18.6 in	17.4 in	17.4 in	17.9 in	18.6 in	17.9 in
Highest gear	84.4 in	79.1 in	79.1 in	92.8 in	84.4 in	92.8 in