RockShox XC30TK - Coil 100mm 26-Inch 9mm 1-1/8-Inch Disc (Black) 1-1/8" aluminum steerer tube for lighter weight TurnKey crown mounted lockout features a patented blowoff design to take the edge off unexpected hits even when the lockout is engaged Compatible with disc brakes only 100mm of coil sprung travel 1917g. QR TurnKey Aluminum Steerer