Surly Troll Fork: 26" QR 1-1/8" Straight Steerer BlackSurly Troll Fork: 26" QR 1 1 8" Straight Steerer Black. The Troll fork is just like the one that comes with the Troll frame. Three pack cage mounts fender eyelets and unlike other forks its designed to accept a front rack while using a disc brake via through blade threaded mounts in two places on each fork blade. Disc or rim brake compatible Compatible with disc brakes and rack simultaneously Fits 26" wheels with clearance for a 3. 0" tire TECH SPECS