2010 Specialized Stumpjumper vs 2009 Surly Karate Monkey
The M is the Surly Karate Monkey size closest to your 19 Specialized Stumpjumper. 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 in 19, the Surly Karate Monkey in M places the top of the head tube 14 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 32 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −14 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- −32 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Specialized Stumpjumper, 19Surly Karate Monkey, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper 19 | Surly Karate Monkey M | Difference |
|---|---|---|---|
| Reach | 428mm | 427 | −1 mm |
| Stack | 611mm | 597 | −14 mm |
| Head tube angle | 70.5° | 71.5 | +1.0° |
| Seat tube angle | 73° | 73 | ±0.0° |
| Chainstay length | 424mm | 431 | +7 mm |
| Wheelbase | 1096mm | 1064 | −32 mm |
| BB height | 304mm | not listed | |
| Standover | 811mm | 811.1 | +0 mm |
| Seat tube length | 483mm | 457.2 | −26 mm |
| Effective top tube | not listed | 600.6 | |
| BB drop | not listed | 68 | |
| Fork length | not listed | 468 | |
| Head tube length | not listed | 90 |
Differences are the Surly Karate Monkey minus the Specialized Stumpjumper. Full charts: 2010 Specialized Stumpjumper, 2009 Surly Karate Monkey.
Where each sits in its class
Specialized StumpjumperSurly 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 StumpjumperStumpjumper | Surly Karate MonkeyKarate Monkey - Organic Eggplant |
|---|---|---|
| Fork | Fox Float F90 RL | not listed |
| Shifter | Shimano Deore M660 | Shimano Deore |
| Derailleur | Shimano Deore M660, Shimano SLX M772 Shadow | Shimano Deore |
| Cassette | Shimano HG61 | 12-speed, 11-51t |
| Chain | SRAM PC-971 | KMC X-12 |
| Crankset | Shimano Deore M542 | Shimano Deore MT510 |
| Tire | Specialized S-Works Fast Trak LK | Surly Dirt Wizard |
| Hub | Specialized Hi Lo, Shimano M525SL | not listed |
| Rim | Mavic X317 | not listed |
| Brake | Avid SD-3R, Avid FR-5 | SRAM BB5 |
| Saddle | Specialized Phenom | Selle Italia |
| Frame | not listed | Surly Karate Monkey |
| Bottom bracket | not listed | Shimano 73mm threaded |
| Wheelset | not listed | Novatec hubs, WTB ST i40 TCS 2.0, 27.5" |
| 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 |
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