Quiver

2010 Specialized Stumpjumper Comp vs 2009 Surly Karate Monkey

The XS is the Surly Karate Monkey size closest to your 15.5 Specialized Stumpjumper Comp. 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 Comp in 15.5, the Surly Karate Monkey in XS places the top of the head tube 23 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 19 mm longer, which can contribute to stability at speed.

Frame stack
+23 mm
Higher front end
Frame reach
−3 mm
Shorter frame reach
Wheelbase
+19 mm
Longer: steadier at speed
Head angle
−1.5°
Slacker: calmer steering
Chainstays
−1 mm
About the same

The two frames

2010 Specialized Stumpjumper Comp (15.5) and 2009 Surly Karate Monkey (XS), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Stumpjumper Comp is drawn in full with its measurements, and the Surly Karate Monkey is the colored outline on top.J 1034

Specialized Stumpjumper Comp, 15.5Surly Karate Monkey, XSDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Stumpjumper Comp 15.5Surly Karate Monkey XSDifference
Reach380mm377−3 mm
Stack574mm597+23 mm
Head tube angle70.5°69−1.5°
Seat tube angle73°73±0.0°
Chainstay length424mm423−1 mm
Wheelbase1034mm1053+19 mm
BB height304mmnot listed
Standover741mm743+2 mm
Seat tube length394mm330−64 mm
Effective top tubenot listed560
BB dropnot listed55
Fork lengthnot listednot listed
Head tube lengthnot listed100

Differences are the Surly Karate Monkey minus the Specialized Stumpjumper Comp. Full charts: 2010 Specialized Stumpjumper Comp, 2009 Surly Karate Monkey.

Where each sits in its class

Specialized Stumpjumper CompSurly 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.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartSpecialized Stumpjumper CompCompSurly Karate MonkeyKarate Monkey - Organic Eggplant
ForkFox Float F90 RLnot listed
ShifterSRAM X-7Shimano Deore
DerailleurShimano Deore M660, SRAM X-9Shimano Deore
CassetteShimano HG6112-speed, 11-51t
ChainSRAM PC-971KMC X-12
CranksetShimano Deore M542Shimano Deore MT510
TireSpecialized S-Works Fast Trak LKSurly Dirt Wizard
HubSpecialized Hi Lo, Shimano M525SLnot listed
RimDT Swiss X420SLnot listed
BrakeAvid ElixirSRAM BB5
SaddleSpecialized PhenomSelle Italia
Framenot listedSurly Karate Monkey
Bottom bracketnot listedShimano 73mm threaded
Wheelsetnot listedNovatec hubs, WTB ST i40 TCS 2.0, 27.5"
Rotornot listedSRAM 180/160mm, 6-bolt
Handlebarnot listedSalsa Rustler
Stemnot listedKalloy 31.8mm
Gripsnot listedVelo Black
Headsetnot listedCane Creek
Seatpostnot listedKalloy 30.9mm

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