BFGoodrich g-Force Sport COMP-2 Radial Tire - 275/40R18  99Z SL COMP-2 Compound - Silica-infused "COMP-2" compound is derived from racing technology and delivers sharp steering response and leading grip in wet and dry conditions, without sacrificing tread wear. Sport Tread Design - g-Force Sport tread pattern provides proven stability and maximum cornering power while g-Hooks provide biting edges for grip at any cornering angle. Performance Racing Core (PRC) - Internal structure features a reinforced construction that delivers increased responsiveness, control and durability, as well as serious control in hard cornering.