Quiver

2011 Specialized Stumpjumper Comp vs 2009 Surly Karate Monkey

The Surly Karate Monkey size closest to your 17.5 is the S. Compare the S instead

What changes on the Surly Karate Monkey

Compared with the Specialized Stumpjumper Comp in 17.5, the Surly Karate Monkey in L places the top of the head tube 14 mm higher and 41 mm further forward, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.

Frame stack
+14 mm
Higher front end
Frame reach
+41 mm
Longer frame reach
Wheelbase
+6 mm
Longer: steadier at speed
Head angle
+1.5°
Steeper: sharper steering
Chainstays
+7 mm
Longer: more planted

The two frames

2011 Specialized Stumpjumper Comp (17.5) and 2009 Surly Karate Monkey (L), 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 1070

Specialized Stumpjumper Comp, 17.5Surly Karate Monkey, LDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Stumpjumper Comp 17.5Surly Karate Monkey LDifference
Reach409mm450+41 mm
Stack592mm606+14 mm
Head tube angle70.5°72+1.5°
Seat tube angle73°73±0.0°
Chainstay length424mm431+7 mm
Wheelbase1070mm1076.1+6 mm
BB height304mmnot listed
Standover780mm838.2+58 mm
Seat tube length445mm508+63 mm
Effective top tubenot listed617.5
BB dropnot listed68
Fork lengthnot listed468
Head tube lengthnot listed95

Differences are the Surly Karate Monkey minus the Specialized Stumpjumper Comp. Full charts: 2011 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
ForkRockShox Reba RLTnot listed
ShifterSRAM X-7Shimano Deore
DerailleurSRAM X-7, SRAM X-9Shimano Deore
CassetteShimano HG8112-speed, 11-51t
ChainKMC X10KMC X-12
CranksetSRAM S-1250Shimano Deore MT510
TireSpecialized S-Works Fast Trak LKSurly Dirt Wizard
HubSpecialized Hi Lonot 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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