Shimano Deore M625 Double Crankset 38T / 24T - 175mm Arm - 10 SpeedShimano Deore M625 Double Crankset 38T 24T 175mm Arm 10 Speed The Shimano Deore M625 Double Crankset is intended for use with a 2x10 Speed drivetrain and provides specific gearing that's optimised for 27. 5" and 29" wheeled bikes. This crankset features a gear range that provides the perfect pedalling performance for large wheel bikes. It's smaller chainrings give an efficient and silent performance, even when used on long travel full suspension