Shimpo RK2 drive ring replica, 4.75 inches

This is a replica of an original Shimpo RK2 drive ring. It is cast in industrial urethane rubber. Total exterior diameter is 4 3/4 inches, total interior diameter of 3 5/8 inches.
 ***Measure your drive ring before ordering!!! Returns will not be accepted in these parts***
Each ring is hand cast in an artisinal fashion in the Appalachian foothills. The replicas are cast in a mold, which was made using an original old stock shimpo drive ring (pictured) discovered in a spare parts bin that was stashed away some time in the 80s.
If your original shimpo drive ring is very worn, you may need to adjust the motor mounting bolts on your wheel to compensate for the thickness of a new drive ring. Please contact a professional equipment repair person if you need help with this.