Surly Karate Monkey 27.5+ Suspension

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Multipurpose Hardtail Mountain Bike

Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations.

Originally designed as a 29er (and the frame that helped spark the 29” wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a shit-eating grin, of course.

  • Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork
  • Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
  • Clearance for 29” x 2.5” or 27.5” x 3” tires


Frame Surly 4130 Chromoly Steel.
Fork Rock Shox 35 Gold RL
Seatpost Clamp Surly stainless, 33.1mm


Headset Cane Creek
Brakes SRAM DB Level
Brake levers SRAM DB Level
Rotors SRAM Centerline 180/160
Handlebar Salsa Rustler 31.8
Grips Velo single lock-on
Shifters SRAM NX Eagle Trigger
Stem Promax 31.8, 4-Bolt
Saddle WTB Volt Sport
Seatpost TranzX SP15, dropper post 100mm travel on XS 120mm travel on SM/MD/LG/XL


Crankset SRAM NX EAGLE 30t
Bottom Bracket SRAM Power Spline
Front Derailleur None
Rear derailleur SRAM NX EAGLE
Cog or cogset SRAM EAGLE 11-50t


Front hub 110mm, 15mm thru-axle, 32h
Rear hub 148mm, 12mm thru-axle, 32h
Rims WTB ST i40 TCS
Tires Surly Dirt Wizard 27 x 3