This is the compound that has won more championships since its debut than all others. It is a perennial workhorse in NASCAR. When it comes to slowing down under the most severe conditions, 83 Compound has a tremendous history of success. Higher bite than 80 Compound, with a rising torque curve to handle the most extreme conditions, along with low wear. 01, 03 and 05 Compounds are steadily replacing 83 Compound in most applications. It is still available in many applications and remains a viable choice nearly 20 years after being released. 83 can be replaced with 05, 07 or 13 compounds. 83 Recommended Applications: High grip and severe duty applications. NASCAR Short Track and Road Course, NASCAR Speedway and Intermediate, All Oval Track Race series. Recommended for severe duty applications.