The Karate Monkey frame has recently gotten a makeover that includes the addition of features like internal dropper post routing, a new tubeset that uses the same trumpet tubes found on our Instigator 2.0, and a slight tweak in geometry that is more progressive and trail-oriented.

The Karate Monkey uses a horizontal dropout with a derailleur hanger that features Gnot-Boost spacing, which gives the rider the ability to run any kind of mountain bike hub they choose. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost™ will all work in the Karate Monkey frame. The frame uses a 44mm headtube for broad fork compatibility and is ED coated for an added layer of internal protection.

If, at any point, you decide you want to throw on some skinny meats, standard 29” wheels and tyres can be swapped in with no issue. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled.

Get after it.

Features

• Tubing- Surly 4130 CroMoly Steel ‘Natch tubing
• Rear Dropouts- Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, or 148mm hub spacing compatibility, threaded fender eyelets
• Brake Compatibility- 51mm I.S. disc caliper mounts, 180mm max rotor size
• Braze-ons/extras- Dual bottle-mounts on XS–M, three bottle-mounts on LG–XL, dropper post routing, rack and fender mounts
• Seatpost- 30.9mm
• Seatpost clamp- 33.1mm (Surly stainless included)
• Headtube- 44mm
• Front Derailleur Clamp Diameter- 34.9mm, high direct-mount
• Bottom Bracket- 73mm
• Chainring Clearance- 32t Boost 1x, 24/36t Boost 2x, 28t 1x, 24/34t 2x
• Tyre Clearance- 27.5 x 3.0? and 29 x 2.5?, individual tire and rim combos affect tyre clearance
• Fork- 140mm travel suspension fork compatible (547mm A-to-C max)
• Thru Axle- Surly 15x110 and 12x142/148 Thru Axles (included)