The Ground Speed Voyager GT tire comes in 235/75R15. It has a Load Index of 105 which means the tire is rated to hold up to 2039 lbs. The tire has a Speed Rating of T so it is rated to go up to 118 mph. The UTQG rating is 640 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.