The TRP CK-8050 crankset features forged aluminum crankarms for durability and robustness with a 30mm spindle diameter to provide exceptional power transfer.Durable and robust forged aluminum crankarms can handle the most extreme conditions30mm spindle diameter is torsionally rigid for exceptional power transferFor use with frames that have 68mm or 73mm bottom bracket shells52mm Chainline achieved with TRP CR-M9050 3mm offset chainrings49mm Chainline achieved with TRP CR-M8070 6mm offset chainringsChainring and bottom bracket Sold SeparatelyItem SpecificationsBB IncludedNoChainline/Hub Compatibility135/142 MTB HubsChainline/Hub Compatibility141/148 Boost HubsColorSandblasted BlackCrank Intended UseMountainCrank Length (mm)170Defined ColorBlackDrivetrain Speeds12Number of ChainringsNo Rings IncludedPedal Spindle9/16"RingsSold Separately TRP CK-8050 Crankset Crankset EAN: 4717592038620