FSA A-Drive 175mm 28-38- 48 Square Taper Crankset BB Shell Width: Square TaperChain Compatibility: 3/32"Chainring BCD: RivetedmmChainrings: 28/38/48TCrank Color: BlackCrank/FD Type: Mountain TripleCrankarm Length: 175mmCrankarm Length: 175mmCrankset BCD: RivetedCrnk Clr: BlackPedal Spindle: 9/16"Rings: 28-38-48Spin: Not ApplicableSpindle Interface Type: Square Taper JIS