The FC-MT210 2-piece crankset is designed for 9-speed MTB drivetrains.Features-Chainline: 51.8mm-Q-factor: 176mm-Compatible with outboard 24mm bottom brackets-Features SG-X chainrings and precise, reliable shifting-Hyperdrive technology provides smooth and precise shifting performance for trail focused ridersItem Specifications-BB Included:No-Chainline/Hub Compatibility:141/148 Boost Hubs-Chainring BCD:Riveted-Color:Black-Crank Intended Use:Mountain-Crank Length (mm):170-Defined Color:Black-Drivetrain Speeds:9-Number of Chainrings:Triple-Pedal Spindle:9/16"-Rings:36/22-Spindle Interface Type: Hollowtech II