Reliable, light and darn good looking Can be used with single speed, 1x9, 1x10 and 1x11 Compatible with SRAM XX1, X01, X0, X9, X7, S2210, S1400 and Truvativ AKA cranks, GXP and long spindle BB30 models Narrow/Wide tooth profile helps prevent dropped chains Optimized to ride in heavy mud thanks to specially designed chamfers *If used in a 1x9 drivetrain a 10sp chain must be used 7075 Aluminum construction Direct Mount 28T 7075AL GXP Bl...