Specialized Stumpjumper Expert Carbon EVO R 29

2012 MountainCross-country Manufacturer page

Fork travel: 90 mm
Wheels: 29″
Drivetrain: 1 × 10 34t / 11–36t
Gear range: 327%
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

15.5"
17.5"
19"
21"

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

FACT 8m carbon, 29"" geometry, FACT IS construction, tapered HT, carbon PF30 BB, hollow carbon dropouts, replaceable alloy derailleur hanger Not identified

Suspension

1 part

Fork
- RockShox SID

Drivetrain

7 parts

Bottom bracket
- SRAM PressFit 30
Cassette
- SRAM PG-1050 10 speeds 11–36t
PG-1050
Chain
- KMC X10 10 speeds
X-10
Crankset
- SRAM 34t
S-2200
Front derailleur
- e*thirteen
Rear derailleur
- SRAM X0
Shifters
- SRAM Trigger Shifter Clamps

Brakes

2 parts

Brake levers
- Formula
Brakes
- Formula

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- Specialized
Handlebar
- S-Works
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

4 sizes Open in the geometry plotter

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

Size 17.5"

Table

Reach 411mm

Stack 612mm

Wheelbase 1072mm

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	394	410.5	430	450
Stackmm	594	612	627	641
Top tube lengthmm	570	592	615	640
Seat tube lengthmm	394	445	483	533
Head tube lengthmm	90	100	115	130
Head tube angle	71.5°	71.5°	71.5°	71.5°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	435	435	435	435
Wheelbasemm	1049	1072	1106	1132
Front centermm	622	645	679	705
Bottom bracket dropmm	63.5	63.5	63.5	63.5
Bottom bracket heightmm	304	304	304	304
Standover heightmm	760	810	830	870
Fork rakemm	45	45	54	55
Trailmm	78	78	68	67
Stack/reach ratio	1.51	1.49	1.46	1.42
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	680	680	680	680
Stem lengthmm	75	90	105	105

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: Carbon
Fork material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 90 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 27.4 in
Highest gear: 89.6 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

90 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

27.4 gear inches

This value is above 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

89.6 gear inches

This value is below 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: 10.5 km/h
Highest gear: 34.3 km/h

Total gear range 327%

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: 27.4–89.6 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 Expert Carbon EVO R 29	Specialized Stumpjumper EVO 29	Specialized Stumpjumper FSR Comp EVO	Specialized Stumpjumper FSR Expert Carbon EVO	Specialized Stumpjumper FSR Expert EVO 29
Frame
Frame material	Carbon	Aluminum	Aluminum	Carbon	Aluminum
Fork material	Aluminum	Not informed	Aluminum	Not informed	Not informed
Suspension
Suspension configuration	Hardtail	Hardtail	Full suspension	Full suspension	Full suspension
Front travel	90 mm	80 mm	150 mm	150 mm	140 mm
Rear travel	Not informed	Not informed	150 mm	150 mm	135 mm
Drivetrain
Front chainrings	1	1	2	Not informed	Not informed
Smallest chainring	34	33	24	Not informed	Not informed
Largest chainring	34	33	36	Not informed	Not informed
Lowest gear	27.4 in	26.6 in	17.3 in	Not informed	Not informed
Highest gear	89.6 in	87.0 in	85.1 in	Not informed	Not informed
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Fork spring	Air	Air	Not informed	Air	Not informed
Suspension	Hardtail	Hardtail	Full suspension	Full suspension	Full suspension
Tire width	1.95″	2.2″	2.3″	2.3″	2.2″
Wheel size	29″	29″	26″	26″	29″