Surly 2021 Karate Monkey 27.5+

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  • Regular price $33.00
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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 100% Surly Chromoly Steel.
Fork 100% Surly Chromoly Steel
Seatpost Clamp Surly stainless, 33.1mm


Headset Cane Creek 15
Brakes Tektro HD-M275
Brake Levers Tektro HD-M275
Rotors Tektro 180/160mm
Shifter Shimano Deore SL-M6100
Stem Promax 31.8
Handlebar Salsa Rustler without logo
Grips Velo - lock on
Saddle WTB Volt 142
Seatpost Promax 30.9


Crankset Shimano Deore FC-MT510-1, 30t
Bottom Bracket Shimano, included with crankset
Front Derailleur N/A
Rear Derailleur Shimano Deore RD-M6100, 12-speed
Cog or cogset SunRace CSMZ800, 11-51t, 12-Speed
Chain KMC X12, NP/BK


Front Hub 110mm, Novatec, 32h, Thru-Axle
Rear Hub 148mm, Novatec, 32h, Thru-Axle
Rims WTB ST i40 TCS
Tires Surly Dirt Wizard 27 x 3", 60 tpi, Tubeless Ready