F1 Pro-mount wheels
The 1510 Promount wheel is specifically designed for mounting rubber tires; specifically CRC's RT-1, the TCS F1 and Pit Shimizu F1 line of tires. With the molded in "guidance ribs" or mounting ribs, the Promount is superior to other F1 wheels. The rib guides the tire bead in the right place, not allowing the tire to be mounted too far on the wheel. The design makes mounting F1 rubber tires MUCH easier.