CRC RT-1 Pre-Mounted F1 Front & Rear Rubber Tires are ready to race, right out of the bag. High performance RT-1 tires have proven themselves in the World GT-R category of racing. These are the same high performance, belted tire with great grip and durability. The RT-1 tire has ZERO degradation, as fast on run 20 as race 1. The RT-1 has super long wear, providing multiple SEASON of use on carpet surfaces. Now these awesome tires are available pre-glued to the best rim in the business, the CRC F1 Premount. Available as a set of 4 only.