The sram xx1 11speed crankset developed for maximum chain control each toothrsquos thickness is precisely cnc machined to support the chainrsquos inner and outer links perfectly the crankset allows you to tune your gear range to match your terrain wheel size and riding style each x synctrade chain ring fits a single universal spidermdashallowing you to change rings without removing the light weight carbon crank arm sram xx1 11speed crankset features n