2010 Specialized Stumpjumper Expert Carbon vs 2009 Surly Karate Monkey
The M is the Surly Karate Monkey size closest to your 18 Specialized Stumpjumper Expert Carbon. 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 Expert Carbon in 18, the Surly Karate Monkey in M places the top of the head tube 8 mm higher and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Specialized Stumpjumper Expert Carbon, 18Surly Karate Monkey, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper Expert Carbon 18 | Surly Karate Monkey M | Difference |
|---|---|---|---|
| Reach | 420mm | 427 | +7 mm |
| Stack | 589mm | 597 | +8 mm |
| Head tube angle | 71° | 71.5 | +0.5° |
| Seat tube angle | 73° | 73 | ±0.0° |
| Chainstay length | 424mm | 431 | +7 mm |
| Wheelbase | 1073mm | 1064 | −9 mm |
| BB height | 301mm | not listed | |
| Standover | 793mm | 811.1 | +18 mm |
| Seat tube length | 457mm | 457.2 | +0 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 Expert Carbon. Full charts: 2010 Specialized Stumpjumper Expert Carbon, 2009 Surly Karate Monkey.
Where each sits in its class
Specialized Stumpjumper Expert CarbonSurly 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 Expert CarbonExpert Carbon | Surly Karate MonkeyKarate Monkey - Organic Eggplant |
|---|---|---|
| Fork | RockShox SID | not listed |
| Shifter | SRAM X9 | Shimano Deore |
| Derailleur | Shimano Deore M660, SRAM X.0 | Shimano Deore |
| Cassette | Shimano HG61 | 12-speed, 11-51t |
| Chain | SRAM PC-971 | KMC X-12 |
| Crankset | Shimano SLX M762 | Shimano Deore MT510 |
| Bottom bracket | Shimano BB-91 | Shimano 73mm threaded |
| Tire | Specialized S-Works Fast Trak LK | Surly Dirt Wizard |
| Hub | Specialized Hi Lo, DT Swiss 330SL | not listed |
| Rim | DT Swiss X420SL | not listed |
| Brake | Avid Elixir CR SL | SRAM BB5 |
| Saddle | Specialized Phenom | Selle Italia |
| Frame | not listed | Surly Karate Monkey |
| 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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