Surly Troll Fork Description: The Surly Troll fork is just like the one that comes with the Troll frame. Three-pack cage mounts, fender eyelets, and unlike other forks, it's designed to accept a front rack while using a disc brake, via through-blade threaded mounts in two places on each fork blade. Features: Disc or rim brake compatible Compatible with disc brakes and a rack simultaneously Fits 26" wheels with clearance for a 3.0" tire Specifications: Color: Black Wheel Size: 26" Tire Clearance (Max): 3" Spacing: 9mm x 100mm Brake Mount: IS Disc Brake 160, Canti Studs Maxium Rotor Size: 180mm Steerer Type: 1-1/8" (Straight) Steerer Tube Length: 310mm Axle to Crown Length: 420mm S.H.I.S Stem Clamp Diameter: 28.6 Weight: 1192g