Quiver

2012 Specialized Stumpjumper Carbon 29 Singlespeed vs 2010 Surly Karate Monkey

We can't match sizes for these two: one of them has no stack and reach for the sizes shown.

What changes on the Surly Karate Monkey

Frame stack
n/a
One of the bikes has no number for this
Frame reach
n/a
One of the bikes has no number for this
Wheelbase
−8 mm
Shorter: quicker to change direction
Head angle
±0.0°
About the same head angle
Chainstays
−4 mm
Shorter: livelier

The two frames

2012 Specialized Stumpjumper Carbon 29 Singlespeed (17.5)The Specialized Stumpjumper Carbon 29 Singlespeed frame drawn to scale.J 1072

Only the Specialized Stumpjumper Carbon 29 Singlespeed is drawn. The Surly Karate Monkey numbers we have for size M are missing the reach and stack.

Geometry side by side

MeasurementSpecialized Stumpjumper Carbon 29 Singlespeed 17.5Surly Karate Monkey MDifference
Reach410.5mmnot listed
Stack612mmnot listed
Head tube angle71.5°71.5±0.0°
Seat tube angle73.5°73−0.5°
Chainstay length435mm431−4 mm
Wheelbase1072mm1064−8 mm
BB drop63.5mm68+5 mm
BB height304mmnot listed
Standover810mm811.1+1 mm
Seat tube length445mm457.2+12 mm
Effective top tubenot listed600.6
Fork lengthnot listed468
Head tube lengthnot listed90

Differences are the Surly Karate Monkey minus the Specialized Stumpjumper Carbon 29 Singlespeed. Full charts: 2012 Specialized Stumpjumper Carbon 29 Singlespeed, 2010 Surly Karate Monkey.

Where each sits in its class

Specialized Stumpjumper Carbon 29 SinglespeedSurly Karate Monkey

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet