Surly Karate Monkey MTB frameset 27.5+/29' fool's gold

Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well.

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

Specifications

• Frame Construction: 4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated
• Fork Construction: 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
• Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout
• Rear Hub Spacing: "Gnot-Boost" 145mm, 12 x 142mm or 12 x 148mm (Surly axle included), 10 x 135mm with Surly 10/12 Adapter Washers (not included)
• Front Hub Spacing: 15 x 110mm (Surly axle included)
• Rear Brake: Disc 51mm I.S. (203mm max rotor)
• Front Brake: Disc 51mm I.S. (203mm max rotor)
• Head Tube: Ø44mm
• Steerer Tube: Ø28.6mm (1-1/8")
• Crown Race: Ø30mm (1-1/8")
• Stock Headset Upper (S.H.I.S): ZS44/28.6
• Stock Headset Lower (S.H.I.S): EC44/30
• Seat Collar: Ø33.1mm
• Seatpost: Ø30.9mm