Many of our 10-inch racing quick changes use either a 4.12 or 4.86 ring & pinion ratio. In this video we explain how to quickly determine which ring & pinion you have by simply spinning your wheel or hub and counting the pinion rotations.
Many of our 10-inch racing quick changes use either a 4.12 or 4.86 ring & pinion ratio. In this video we explain how to quickly determine which ring & pinion you have by simply spinning your wheel or hub and counting the pinion rotations.