Micro SHIFT Sword 2x Crankset - 10-Speed You Have My Sword. And You Have my Bow. And My Axe The Micro SHIFT Sword 2x crankset is designed for climbing. The two chainrings have a 17T gap between them, so you get a lower gear range than competitive cranks while still having high gears to push the pace downhill. And it's designed to be as compatible and easy to own as possible: the 24mm spindle is compatible with a ton of aftermarket bottom brackets, and it's easy to convert from a 2x to a 1x crank by installing a single chain-retaining ring in the outer position. Features Wide design optimized for 47mm chainlines24mm spindle compatible with Shimano bottom brackets Wider gear range designed to work with Sword front derailleur and shifters Easy conversion from 2x to 1x SPECIFICATIONSSpeeds10-Speed BB Compatibility Shimano Chain Ring48/31T, 46/29TCrank Arm Length170, 172. 5, 175mm BB Spindle Interface Shimano Hollowtech IIChainring Material Steel Bolt Center Diameter (BCD)110 Shimano Asymmetric, 80mm Crank Arm Material Aluminum Chainline Optimized For 47mm Bottom Bracket Included No Intended Use Road, Gravel Weight N/A | Microshift | Sword 2X Crankset - 10 Speed 175Mm, 46/29T | Aluminum