The Starfire Solarus HT tire comes in 255/50R20. It has a Load Index of 109 which means the tire is rated to hold up to 2271 lbs. The tire has a Speed Rating of H so it is rated to go up to 130 mph. The UTQG rating is 500 A B. 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.