Sugino Single Speed Arm Set 175mm Black 130mm BB Shell Width: Square TaperChainring BCD: 130mmChainrings: No ChainringsCrank Color: BlackCrankarm Length: 175mmCrankarm Length: 175mmCrankset BCD: 130mmCrnk Clr: BlackSpin: Not ApplicableSpindle Interface Type: Square Taper JISSpindle Length: 103,110mmWeight: 463g