The Cooper Discoverer STT Pro tire comes in 38X1350R20. It has a Load Index of 123 which means the tire is rated to hold up to 3417 lbs. The tire has a Speed Rating of Q so it is rated to go up to 100 mph. The Cooper Discoverer STT Pro is made for Light Trucks, CUVs and SUVs. It has a Load Range of D, which is also known as 8 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.

The Discoverer STT Pro is formulated with a rugged, wear resistant compound that molds into a dynamic, high-void tread pattern. The tread is optimized to combat stone retention which, in turn, extends tire life. The tread pattern features a hybrid 3-2 tread pattern that minimizes road noise and maximizes ride stability. This tire is equipped with alternating shoulder lugs that bolster traction on soft, muddy road surfaces. Furthermore, mud release dimples expel loose soil from the tread for a confident ride no matter where you're traveling.