The Roadone Aethon M/T tire comes in LT305/55R20. It has a Load Index of 121 which means the tire is rated to hold up to 3197 lbs. The tire has a Speed Rating of Q so it is rated to go up to 99 mph. The Roadone Aethon M/T is made for Light Trucks, CUVs and SUVs. It has a Load Range of E, which is also known as 10 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.