The Grit Master GTM UHP 01 tire comes in 245/45R20. It has a Load Index of 103 which means the tire is rated to hold up to 1929 lbs. The tire has a Speed Rating of W so it is rated to go up to 168 mph. The UTQG rating is 480 A A. UTQG is a system of ratings that measures the Treadwear, Traction, and Temperature of the tire. Click here to learn more about the UTQG ratings. The tire comes in a Black Side Wall.