specs Offset 43 mm Travel 50/63 Crown/Steerer C51/1-1/8" straight (TS) STKM STEERER Stanchion DIA. (Material) 30 mm (STKM) Bottom Case Material Alloy Brake Mount (Max Rotor DIA.) V-Brake+Post (180mm) Axle (Option) 9mm-Dropout Suggested Category eTrekking _eCity ABS Mount : optional No Spring COIL w/ Preload adjuster Max. Suggested Tire Size (ETRTO) 26"x2.1" (54-559) Damper LO (Learn more) Crown/Steerer (Option-1) C51/1.5"to1-1/8" tapered (CTS) STKM STEERER Axle O.L.D ø9-100 (open drop out) Lamp Mount Brace type Fender Mount Long Hub Dynamo Cable Guide Yes