SRAM has taken aluminum to another level. Careful engineering has resulted in crankarms that optimize stiffness to weight ratio with material only where it’s needed8-bolt interface compatible with power and non-power AXS spiders and integrated chainrings (Chainring and spider sold separately)DUB bottom bracket adds durability and simplicity (Bottom bracket sold separately)Aluminum arms optimized for stiffness and light weight Number of Chainrings No Rings, No Spider Included Drivetrain Speeds 13 Chainring BCD Direct Mount SRAM 8-Bolt Chainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm Chainstay Color Black Crank Length (mm) 160, 165, 170, 172.5, 175 Crank Intended Use Road BB Included No Pedal Spindle 9/16" Spindle Interface Type SRAM DUB Defined Color Black
