Surly Karate Monkey MTB Bike, 27.5+, Fool's Gold
The Surly Karate Monkey is a trail-hungry steel hardtail built for adventure and play. Designed with trail geometry and updated features, it’s ready for everything from singletrack to bikepacking missions. The 27.5+ platform gives it aggressive grip and comfort over rough terrain, while its Gnot-Boost rear spacing provides drivetrain and wheel versatility.
Finished in Fool’s Gold, it’s as tough and flashy as it is capable.
Specifications:
Frame: Surly 4130 CroMoly steel, Natch tubing, double-butted main triangle, TIG-welded, ED-coated
Fork: Surly Chromoly rigid fork, 15 x 110mm thru-axle
Wheel Size: 27.5+ (also compatible with 29")
Max Tire Clearance: 27.5 x 3.0" or 29 x 2.5"
Rear Spacing: Gnot-Boost 145mm (fits 12 x 142mm or 12 x 148mm hubs)
Brakes: SRAM Level hydraulic disc brakes
Rotors: 180mm front / 160mm rear
Drivetrain:
Crankset: SRAM NX 1x
Rear Derailleur: SRAM NX 11-speed
Cassette: SRAM PG-1130, 11–42T
Bottom Bracket: 73mm BSA threaded
Seatpost Diameter: 30.9mm
Headset: Cane Creek 40, ZS44/EC44
Handlebar: Surly Sunrise Bar
Mounts: Rack, fender, bottle, and triple fork mounts
Color: Fool’s Gold
Delivery takes approximately 7 days.