The Surly Instigator Mountain fork is constructed of straight bladed CroMoly TIGwelded tubing and features an ISO disc tab and removable canti pivots. Straight bladed CroMoly TIGwelded tubing ISO disc tab and removable canti pivots 26 wheel size, suspensioncorrected for 100mm travel Steerer Tube 118 Threadless Steerer Tube Length 260.0 mm Fork Rake 43 mm Axle to Crown Length 447 mm Crown Race 30.0 Front Axle Type 9x1 Wheel Size 26 Wheel M