The Hercules TIS TT1 tire comes in 33X12.50R20. It has a Load Index of 119 which means the tire is rated to hold up to 2998 lbs. The tire has a Speed Rating of Q so it is rated to go up to 100 mph. The Hercules TIS TT1 is made for Light Trucks, CUVs and SUVs. It has a Load Range of F, which is also known as 12 Ply. This is maximum safe carrying capacity of the tire. A higher Load Range allows the tire to carry a heavier load. The tire comes in a Black Side Wall.