Shimano FC-MT210-2 Crankset Put It Into Hyperdrive! The crankset is what transfers your pedaling power to the rear wheel so you can propel forward. With a stiff crankset, more of your pedaling power will go to the rear wheel. The Shimano FC-MT210 2-piece crankset is designed for 2x9 MTB drivetrains. It features Hyperdrive technology and SG-X chainrings for precise, reliable shifting. It is compatible with outboard 24mm bottom brackets. Features Hyperdrive technology provides smooth and precise shifting performance for trail focused riders Compatible with outboard 24mm bottom brackets Anodized aluminum crank arms for extra durability Works with Hyper Glide 9-speed chains SPECIFICATIONSSpeeds9-Speed BB Compatibility24mm Outboard Chain Ring46/30TCrank Arm Length170, 175mm BB Spindle Interface Shimano Hollowtech IIChainring Material Steel Bolt Center Diameter (BCD)Riveted Crank Arm Material Aluminum Chainline48. 8mm Bottom Bracket Included No Intended Use MTBWeight N/A | Shimano | Fc-Mt210-2 Crankset 170Mm 9-Speed 46/30T | Aluminum