The Kumho Ecsta STX KL12 tire comes in 305/50R20. It has a Load Index of 120 which means the tire is rated to hold up to 3086 lbs. The tire has a Speed Rating of V so it is rated to go up to 149 mph. The tire comes in a Black Side Wall.

The Ecsta STX KL12 is formulated with an optimized, high performance compound that enhances traction on wet and dry road surfaces. This compound forms into a dynamic, nondirectional tread pattern with sturdy tread blocks. These features amplify dry grip and cornering capabilities. Dual circumferential grooves bolster handling performance as well as traction on wet roads. Supplementary high-angled lateral grooves channel water away from the tread to minimize hydroplaning risks. Internally, the Ecsta STX KL12 features twin steel belts wrapped with nylon to provide extra durability and force.