Featuring forged aluminum arms and SRAM's X-Glide chainrings, this crankset is hits the sweet spot between weight, durability and performance. FEATURES: Chainrings are compatible with SRAM 11 speed chains and YAW front derailleurs Chainring spider is removable Q-factor for GXP cranks is 149.6mm, Q-factor for BB30 is 147.4mm SPECS: Number of Chainrings: Double Chainline/Hub Compatibility: 130 Hubs , 135/142 Road Disc Hubs > 415 mm Chainstay Pedal Spindle: 9/16" Crank Intended Use: Road Rings: 34/50 , 50/34 Drivetrain Speeds: 11 Chainring BCD: 110 BB Included: No