The Shimano FC-M5100 crankset features an optimized gear combination and gear ratios designed for trail riding.11-Speed. For 51.8mm chainline. Item Specifications: BB Included, No, Number of Chainrings, Double, Crank Intended Use, Mountain, Drivetrain Speeds, 11, Pedal Spindle, 9/16", Chainline/Hub Compatibility, 141/148 Boost Hubs, Color, Black, Crank Length (mm), 175 mm, Rings, 36/26,.
eBay