TheSRAM Force1 Crank Set 172.5mm 52T. The SRAM Force®1 crankset brings to cyclocross a game-changing upgrade in performance and reliability by combining the durability, simplicity, and efficiency of SRAM’s Force 22 road combined with our MTB 1x technology, X-SYNC™. SRAM Force1 Crank Set 172.5mm 52T Features SRAM X-SYNC™ wide-tooth, narrow-tooth chainring technology provides maximum chain control, crucial in cyclocross Unidirectional carbon in crank arm matched to a forged alloy spider for lightweight and durability Chainrings available in (110 BCD) 38, 40, 42, 44, 46, 48, 50, (130BCD) 52 and 54 teeth to conquer every course from sand dunes to gravel-road assaults Single-ring drivetrain simplifies functionality