Specialized Stumpjumper Comp 29

2012 MountainCross-country Manufacturer page

Fork travel: 80 mm
Wheels: 29″
Drivetrain: 2 × 10 24–38t / 11–36t
Gear range: 518%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

15.5"
17.5"
19"
21"
23"

The manufacturer did not publish rider heights for these sizes.

Components

19 of 23 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

M5 fully manipulated alloy, 29"" geometry, tapered HT, PF30 BB, PM 140mm rear brake, 135mm dropouts, replaceable derailleur hanger Not identified

Suspension

1 part

Fork
- RockShox Reba RL

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- Specialized
Handlebar
- Specialized
Headset

1-1/8 and 1-1/2"" Threadless, Campy style upper with 1-1/2"" lower bearing for tapered integrated HT, cartridge bearings Not identified
Pedals

Resin Test Ride Pedals with toe clips, CEN std. Not identified
Saddle
- Specialized
Seatpost

2014 butted alloy, single bolt setback, 27.2mm, 350mm 15.5/17.5"" Not identified
Stem
- Specialized

Sizes and geometry

5 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 19"

Table

Reach 428mm

Stack 630mm

Wheelbase 1096mm

Head angle 71.5°

Seat angle 73.5°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	393	408	428	449	463
Stackmm	596	616	630	644	663
Top tube lengthmm	570	590	615	640	660
Seat tube lengthmm	394	445	483	533	584
Head tube lengthmm	90	100	115	130	150
Head tube angle	71.5°	71.5°	71.5°	71.5°	71.5°
Seat tube angle	73.5°	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	435	435	435	435	435
Wheelbasemm	1051	1070	1096	1121	1142
Front centermm	624	643	669	694	714
Bottom bracket dropmm	63.5	63.5	63.5	63.5	63.5
Bottom bracket heightmm	304	304	304	304	304
Standover heightmm	758	796	826	860	893
Fork rakemm	47	44	46	45	46
Trailmm	76	79	77	78	77
Stack/reach ratio	1.52	1.51	1.47	1.43	1.43
Suspension and parts
Crank lengthmm	170	175	175	175	175
Handlebar widthmm	680	680	680	680	680
Stem lengthmm	75	90	105	105	105
Seatpost lengthmm	350	350	400	400	400

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 24
Largest chainring: 38
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 19.3 in
Highest gear: 100.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: PF30
Fork spring: Air
Tire width: 1.95″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

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

Front travel

80 mm

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 238 bicycles with this information
Coverage: 75.3% of the class

Lowest gear

19.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 294 bicycles with this information
Coverage: 93.0% of the class

Highest gear

100.2 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 294 bicycles with this information
Coverage: 93.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.4 km/h
Highest gear: 38.4 km/h

Total gear range 518%

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: 19.3–100.2 gear inches
Class reference (p10–p90): 16.8–116.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2012
Lowest gear: 294 bicycles with this information, 93.0% of the class
Highest gear: 294 bicycles with this information, 93.0% 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 2012 builds

Differences across 2012 builds
Specification	This bicycle Specialized Stumpjumper Comp 29	Specialized Stumpjumper Comp	Specialized Stumpjumper Comp Carbon	Specialized Stumpjumper Comp Carbon 29	Specialized Stumpjumper Expert Carbon 29	Specialized Stumpjumper FSR Comp
Frame
Frame material	Aluminum	Aluminum	Carbon	Carbon	Carbon	Aluminum
Fork material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Not informed
Suspension
Suspension configuration	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Full suspension
Front travel	80 mm	90 mm	90 mm	80 mm	90 mm	140 mm
Rear travel	Not informed	Not informed	Not informed	Not informed	Not informed	140 mm
Drivetrain
Lowest gear	19.3 in	17.3 in	17.3 in	19.3 in	19.3 in	17.3 in
Highest gear	100.2 in	89.8 in	89.8 in	100.2 in	100.2 in	89.8 in
Other specifications
Suspension	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail	Full suspension
Tire width	1.95″	2″	2″	1.95″	1.95″	2.2″
Wheel size	29″	26″	26″	29″	29″	26″