Which size or configuration labels have geometry for the 2012 Specialized Stumpjumper Carbon 29?

Geometry is listed for 15.5, 17.5, 19, and 21.

What are the reach and stack of the 2012 Specialized Stumpjumper Carbon 29 in size 19?

In size 19, reach is 430 mm and stack is 627 mm.

What is the head tube angle of the 2012 Specialized Stumpjumper Carbon 29?

The head tube angle is 71.5 degrees in every size.

What does the 2012 Specialized Stumpjumper S-Works Carbon 29 XTR ship with?

The stock build includes RockShox SID World, Shimano XTR M980R, Roval Control SL 29, and Shimano XTR.

Which years of the Specialized Stumpjumper are on Quiver?

Quiver has the Specialized Stumpjumper for 2012, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2016, 2015, 2014, 2011, 2010, 2009, 2008, 2007, and 2006.

2012

2012 Specialized Stumpjumper Carbon 29

Trail

The 2012 Specialized Stumpjumper Carbon 29 sits at the upright end of the range for a trail bike, with a steeper head angle and a longer rear center. Reach 394 to 450 mm, stack 594 to 641 mm. The Stumpjumper S-Works Carbon 29 XTR build comes with Shimano XTR M986 shifting and Roval Control SL 29 wheels.

Compare with 1,400+ trail bikes

Source: specialized.com. Checked Sep 5, 2026.

Key facts

Brand: Specialized
Model: Stumpjumper
Model year: 2012
Frame: Carbon 29
Type: Trail
Geometry labels: 15.5, 17.5, 19, and 21
Drivetrain: Shimano XTR M986
Fork: RockShox SID World
Wheels: Roval Control SL 29
Geometry: Complete for every size
Source: specialized.com
Checked: Sep 5, 2026

Geometry by size

Geometry drawing, size 17.5, to scale.

2012 Specialized Stumpjumper Carbon 29 geometry by size
Measurement	15.5	17.5	19	21
Reach(mm)	394	410.5	430	450
Stack(mm)	594	612	627	641
Head tube angle(°)	71.5	71.5	71.5	71.5
Seat tube angle(°)	73.5	73.5	73.5	73.5
Chainstay length(mm)	435	435	435	435
Wheelbase(mm)	1049	1072	1106	1132
BB drop(mm)	63.5	63.5	63.5	63.5
BB height(mm)	304	304	304	304
Standover(mm)	760	810	830	870
Seat tube length(mm)	394	445	483	533

How to read a geometry chart

Stock build

Stumpjumper S-Works Carbon 29 XTR12 parts

Suspension

RockShox SID World

Fork

Drivetrain

Shimano XTR M980R

Shifter

Shimano XTR M986

Derailleur

Shimano XTR M980 Shadow

Derailleur

Shimano XTR

Cassette

Shimano XTR M980

Chain

Wheels & Tires

Roval Control SL 29

Wheelset

Specialized S-Works Renegade

Tire

Brakes

Shimano XTR

BrakeCaliper mount Flat Mount

Shimano XTR M985

Brake

Cockpit

Syntace F109

Stem

Seatpost & Saddle

Specialized Phenom Expert

Saddle

Keep your Stumpjumper S-Works Carbon 29 XTR in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

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Stumpjumper S-Works Carbon 291 partFrameset only

Suspension

RockShox SID World

Fork

Keep your Stumpjumper S-Works Carbon 29 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App Store Free on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Manufacturer

Keep the factory build and your current parts distinct

Quick answers

Which size or configuration labels have geometry for the 2012 Specialized Stumpjumper Carbon 29?: Geometry is listed for 15.5, 17.5, 19, and 21.
What are the reach and stack of the 2012 Specialized Stumpjumper Carbon 29 in size 19?: In size 19, reach is 430 mm and stack is 627 mm.
What is the head tube angle of the 2012 Specialized Stumpjumper Carbon 29?: The head tube angle is 71.5 degrees in every size.
What does the 2012 Specialized Stumpjumper S-Works Carbon 29 XTR ship with?: The stock build includes RockShox SID World, Shimano XTR M980R, Roval Control SL 29, and Shimano XTR.
Which years of the Specialized Stumpjumper are on Quiver?: Quiver has the Specialized Stumpjumper for 2012, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2016, 2015, 2014, 2011, 2010, 2009, 2008, 2007, and 2006.