Shimano Tourney FC-A070/A073 Cranksets7/8-Speed compatibleSG-X Steel chainringsSquare taper JISFixing bolts not includedItem SpecificationsDrivetrain Speeds7Drivetrain Speeds8Rings30/39/50Rings50/39/30Defined ColorBlackSpindle Interface TypeSquare Taper JISNumber of ChainringsTripleChainring BCDRivetedCrank Intended UseRoadColorBlackPedal Spindle9/16"BB IncludedNoChainline/Hub Compatibility130 HubsChainline/Hub Compatibility135/142 Road Disc Hubs > 415 mm ChainstayCrank Length (mm)170