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
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
| Measurement | Specialized Stumpjumper Carbon 29 Singlespeed 17.5 | Surly Karate Monkey M | Difference |
|---|---|---|---|
| Reach | 410.5mm | not listed | |
| Stack | 612mm | not listed | |
| Head tube angle | 71.5° | 71.5 | ±0.0° |
| Seat tube angle | 73.5° | 73 | −0.5° |
| Chainstay length | 435mm | 431 | −4 mm |
| Wheelbase | 1072mm | 1064 | −8 mm |
| BB drop | 63.5mm | 68 | +5 mm |
| BB height | 304mm | not listed | |
| Standover | 810mm | 811.1 | +1 mm |
| Seat tube length | 445mm | 457.2 | +12 mm |
| Effective top tube | not listed | 600.6 | |
| Fork length | not listed | 468 | |
| Head tube length | not listed | 90 |
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



