Street Comp Ultra High Performance 305/35R20 20.0 Inch Rim Dia 28.4 Inch OD. The Mickey Thompson Street Comp radial is an ultra-high performance tire designed for street. Engineered for high speed handling and cornering ability. Compounded for traction and responsiveness in both wet and dry conditions. Street Comp is the perfect tire for late model American muscle cars and Pro Touring type applications.