Sugino Single Speed 170mm Road 48t 3/32" 130mm alloy BB Shell Width: Square TaperChain Compatibility: 9-Speed,3/32"Chainring BCD: 130mmChainrings: 48TCrank Color: SilverCrank/FD Type: Single RingCrankarm Length: 170mmCrankarm Length: 170mmCrankset BCD: 130mmCrnk Clr: silverPedal Spindle: 9/16"Rings: 48Spin: Not ApplicableSpindle Interface Type: Square Taper JISSpindle Length: 110,103mmWeight: 565g