50 teeth, 1-speed, DUB, without bottom bracket set 12-speed compatible, hollow carbon cranks, X-Sync Aero chainring made of aluminum for direct mounting, chainline 45 mm Number of chainrings 1 Crank length 160.00 mm Main color black Large chainring 50 inch Chainline 45.0 mm Secondary color gray System compatibility 12-speed Bottom bracket DUB Type / type Article Variation crankset