The Karate Monkey features updated, progressive trail geometry, a new tubeset and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.
100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube
New tubeset uses the same trumpet tubes found on Instigator 2.0 frame
Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer
Internal dropper seatpost routing with 30.9mm seat tube ID
Clearance for 29 x 2.55 or 27.5 x 3" tires
Front Axle Type
15mm Thru x 110mm, Large, Medium, Small, X-Large, X-Small
Rear Axle Type
12mm Thru x 148mm
560, 585, 610, 635, 660
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