Must have for carpet and cool weather racing by allowing the use of softer high grip compounds on your FGX.
Simply CA glue the machined rings into place on the wheels and thereafter allows perfectly true mounting of the Shimizu F104 tires onto the wheels.
1 adaptor set is enough to mount 2 tires, either front or rear.
Remember to wash all rings, wheels and tires before gluing and drill a vent hole in the wheels before mounting the tires.
Tires, wheels and CA glue are required.