GITI Tire (USA) Ltd. says the new GT Radial Champiro UHP1 is for consumers wanting an affordable ultra-high performance (UHP) tire that delivers good cornering and stopping performance. Now available are 26 sizes that fit a broad range of sports sedans, coupes and roadsters. The tire provides summer ultra-high performance with the added flexibility of an M+S rating. The Champiro UHP1 comes in W- and V-speed-rated sizes in 15- to 20-inch rim diameters.