Surly Discount Karate Monkey Frameset

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations.

– 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube
– Tubeset uses the same trumpet tubes found on Instigator 2.0 frame
– Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer
– Internal dropper seatpost routing
– 30.9mm seat tube ID
– Clearance for 29 x 2.55 or 27.5 x 3 tires