The most advanced aluminum crankset SRAM has ever made. Bringing serious riders the exact sort of legitimate performance X0 stands for, courtesy of a ground-breaking all-aluminum design with a perfectly balanced stiffness to weight ratio. X0 Eagle Transmission (T-Type) chainring finished with a distinct, dual-spoke design. Available with a bash guard option, it’s also Power Meter ready. Sitting firmly atop an unquestionable apex of crankset advancement, the X0 Eagle Transmission Crankset is quite literally the epitome of X0. V2 crank has one piece spindle/arm construction for even lighter weight Lightest aluminum crankset on the market. Power Meter ready, bash guard option available. DUB Wide Length Spindle SRAM Model ID: FC-X0-D1 Attributes BB Inclusion No BCD Direct Mount Chainline 55mm Crank Spindle Diameter 28.99mm Crankset Material Aluminum Drivetrain Spacing Boost Interface DUB (Spindle is DUB Wide) Pedals Thread 9/16'' Primary Color Black Speed 12 Teeth 32