Surly Karate Monkey 27.5+ Suspension (Sektor Gold)

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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 RockShox Sektor RL, 27.5 140mm travel, 51mm offset, 15x110 front axle, Disc.
Seatpost Clamp Surly stainless, 33.1mm


Headset Cane Creek
Brakes SRAM Level hydraulic
Brake levers SRAM Level hydraulic
Rotors SRAM Centerline 180/160
Handlebar Salsa Rustler 31.8
Grips Velo single lock-on
Shifters SRAM NX Eagle
Stem Promax, 31.8mm
Saddle WTB Volt Sport
Seatpost TranzX SP15, dropper post 80mm travel on XS/SM 120mm travel on MD/LG/XL


Crankset SRAM Descendant 32T
Bottom Bracket SRAM Power Spline
Front Derailleur None
Rear derailleur SRAM NX Eagle
Cog or cogset SRAM Eagle 11-50t
Chain SRAM NX Eagle


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”, 60 tpi Tubeless Ready