COBRA CX 50 Big Wheel 2018-and up Make COBRA Displacement 50 Model CX 50 Big Wheel Year range 2018-and up ▲Rear Sprocket 70/75 Rear Sprocket 70/75 620222 Rear Sprocket 420 More info ▲Chains Chain 420 642001 Chain V2 420 More info Chain GP 420 642002 Chain GP 420 More info