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
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience. You will be notified when your order is ready to be picked up.


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

Part Numbers

Option UPC MPN Store SKU
Blue Porta Potty / X-Small 708752240162 FM0310 SUR45760024Y
Blue Porta Potty / Small 708752240186 FM0311 SUR44365719Y
Hi-Viz Black / X-Small 708752240261 FM0315 SUR41580279K
Hi-Viz Black / Small 708752240285 FM0316 SUR40986976K
Hi-Viz Black / Medium 708752240308 FM0317 SUR41124393K
Hi-Viz Black / Large 708752240322 FM0318 SUR40231334K
Hi-Viz Black / X-Large 708752240346 FM0319 SUR41847538K
Lemon Lime Soda / Small 708752240384 FM0321 SUR43816563A
Lemon Lime Soda / Large 708752240421 FM0323 SUR43384734A
Lemon Lime Soda / X-Large 708752240445 FM0324 SUR44921158A