The NX Eagle crankset delivers Eagle styling and performance to the newest addition of the Eagle ecosystem. DUB technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. FEATURES: Designed for SRAM's X-Sync 2 chainrings 6000 series forged aluminum arms with DUB Spindle Interface 11 / 12 speed compatible Direct Mount X-Sync 2 Steel Chainring included Bottom bracket sold separately SPECS: Number of Chainrings: Chain Retaining Single Chainline/Hub Compatibility: 135/142 MTB Hubs Spindle Interface Type: SRAM DUB Chainring BCD: Direct Mount SRAM Color: Black Crank Length (mm): 175 Crank Intended Use: Mountain Pedal Spindle: 9/16" Rings: 32 Designed for ebike: Yes Drivetrain Speeds: 10 , 11 , 12 BB Included: No