50 teeth, 1x, DUB, without bottom bracket, black 12-speed compatible, carbon crank arms, X-Sync Aero direct mount aluminum chainring, chainline 45 mm Number of chainrings 1 Type Item main color black Large chainring 50 T. Chainline 45.0 mm Crank length 175.00 mm System compatibility 12-speed Bottom bracket DUB Variation Groupset The light and stiff SRAM Force Aero E1 crankset in combination with the aerodynamic 1x chainring (44T-50T) ensures maximum performance with every pedal stroke. Chasing segments and performing in time trials is now easier, faster, and with more confidence. Single drivetrain simplifies functionality and reduces weight Direct mount aerodynamic chainrings for improved aerodynamics X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control DUB bottom bracket ensures durability and simplicity Can be upgraded to a power meter Available in crank arm lengths of 165, 170, 172.5 and 175 mm Sram Article number: 737864 EAN code: 710845915956 Supplier number: 00.6118.740.005 Retail packaging: Yes