2011 Specialized Stumpjumper Frameset vs 2009 Surly Karate Monkey
The S is the Surly Karate Monkey size closest to your 17.5 Specialized Stumpjumper Frameset. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Surly Karate Monkey
Compared with the Specialized Stumpjumper Frameset in 17.5, the Surly Karate Monkey in S places the top of the head tube 17 mm higher and 5 mm further back, relative to the bottom bracket. Its wheelbase is 23 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +17 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −23 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Specialized Stumpjumper Frameset, 17.5Surly Karate Monkey, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper Frameset 17.5 | Surly Karate Monkey S | Difference |
|---|---|---|---|
| Reach | 407mm | 402 | −5 mm |
| Stack | 580mm | 597 | +17 mm |
| Head tube angle | 70.5° | 71 | +0.5° |
| Seat tube angle | 73° | 73 | ±0.0° |
| Chainstay length | 424mm | 431 | +7 mm |
| Wheelbase | 1068mm | 1044.9 | −23 mm |
| BB height | 304mm | not listed | |
| Standover | 800mm | 781.6 | −18 mm |
| Seat tube length | 445mm | 406.4 | −39 mm |
| Effective top tube | not listed | 576.6 | |
| BB drop | not listed | 68 | |
| Fork length | not listed | 468 | |
| Head tube length | not listed | 80 |
Differences are the Surly Karate Monkey minus the Specialized Stumpjumper Frameset. Full charts: 2011 Specialized Stumpjumper Frameset, 2009 Surly Karate Monkey.
Where each sits in its class
Specialized Stumpjumper FramesetSurly Karate Monkey
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Stumpjumper Frameset | Surly Karate MonkeyKarate Monkey - Organic Eggplant |
|---|---|---|
| Frame | not listed | Surly Karate Monkey |
| Shifter | not listed | Shimano Deore |
| Derailleur | not listed | Shimano Deore |
| Cassette | not listed | 12-speed, 11-51t |
| Chain | not listed | KMC X-12 |
| Crankset | not listed | Shimano Deore MT510 |
| Bottom bracket | not listed | Shimano 73mm threaded |
| Wheelset | not listed | Novatec hubs, WTB ST i40 TCS 2.0, 27.5" |
| Tire | not listed | Surly Dirt Wizard |
| Brake | not listed | SRAM BB5 |
| Rotor | not listed | SRAM 180/160mm, 6-bolt |
| Handlebar | not listed | Salsa Rustler |
| Stem | not listed | Kalloy 31.8mm |
| Grips | not listed | Velo Black |
| Headset | not listed | Cane Creek |
| Seatpost | not listed | Kalloy 30.9mm |
| Saddle | not listed | Selle Italia |
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