- Clean, tough, and simple - Tighten up with a 6mm Allen key. Features a 6mm Allen key on the drive side of the axle if you manage to round the non drive side - Constructed from 7075 aluminum and made to manufacturer's exact specifications - Fits 160E, Arc, SB120, SB140 MY23+, SB160, SB135, ASR, SB165 MY24+ - Original part may say 172mm length yet 174mm axle is still compatible