
Surly Karate Monkey MTB Frame Kit, 27.5+/29", snow mold
The Surly Karate Monkey is the do-it-all trail frame that helped redefine what a hardtail mountain bike could be. Designed to roll on either 29" or 27.5+ wheels, it gives you the freedom to tailor your setup for speed, grip, or all-terrain adventure. Its modern trail geometry, long front end, and short chainstays make it equally fun on fast singletrack, technical climbs, or fully loaded bikepacking routes.
Finished in the cool-toned Snow Mold, this frame doesn’t just handle the rough stuff—it begs for it.
Surly Karate Monkey MTB Frame Kit, 27.5+/29", snow mold
The Surly Karate Monkey is the do-it-all trail frame that helped redefine what a hardtail mountain bike could be. Designed to roll on either 29" or 27.5+ wheels, it gives you the freedom to tailor your setup for speed, grip, or all-terrain adventure. Its modern trail geometry, long front end, and short chainstays make it equally fun on fast singletrack, technical climbs, or fully loaded bikepacking routes.
Finished in the cool-toned Snow Mold, this frame doesn’t just handle the rough stuff—it begs for it.
Specifications
Frame Material: 100% Surly 4130 CroMoly steel, double-butted main triangle, TIG-welded, ED-coated
Fork: Not included (compatible with 483mm axle-to-crown rigid forks or 120mm suspension forks)
Wheel Size Compatibility: 27.5+ or 29"
Rear Dropouts: Gnot-Boost 142/148mm compatible
Front Axle Spacing: 15 x 110mm (Boost)
Brake Mounts: 51mm IS disc mounts (max rotor size: 203mm)
Bottom Bracket: 73mm BSA threaded
Seatpost Diameter: 30.9mm
Headset: ZS44/28.6 (top) | EC44/40 (bottom)
Max Tire Clearance: 29 x 2.5" or 27.5 x 3.0"
Mounts: Bottle bosses, rear rack, fenders, internal dropper post routing
Color: Snow Mold
Delivery takes approximately 7 days.