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Surly Karate Monkey Frameset

Surly Karate Monkey Frameset
  • Color: Blue Porta Potty
  • Color: Blue Porta Potty
  • Color: Hi-Viz Black
  • Color: Hi-Viz Black
  • Color: Lemon Lime Soda
  • Color: Lemon Lime Soda
This item is currently not available.


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

WARNING: Cycling can be dangerous. Bicycles and bicycle products should be assembled and serviced by a professional mechanic. Never modify your bicycle or accessories. Read and follow all product instructions and warnings including information on the manufacturer’s website. Inspect your bicycle before every use. Always wear a helmet.

Part Numbers

Option UPC MPN
Blue Porta Potty / X-Small 708752240162 FM0310
Blue Porta Potty / Small 708752240186 FM0311
Blue Porta Potty / Medium 708752240209 FM0312
Blue Porta Potty / Large 708752240223 FM0313
Blue Porta Potty / X-Large 708752240247 FM0314
Hi-Viz Black / X-Small 708752240261 FM0315
Hi-Viz Black / Small 708752240285 FM0316
Hi-Viz Black / Medium 708752240308 FM0317
Hi-Viz Black / Large 708752240322 FM0318
Hi-Viz Black / X-Large 708752240346 FM0319
Lemon Lime Soda / X-Small 708752240360 FM0320
Lemon Lime Soda / Small 708752240384 FM0321
Lemon Lime Soda / Medium 708752240407 FM0322
Lemon Lime Soda / Large 708752240421 FM0323
Lemon Lime Soda / X-Large 708752240445 FM0324