S-Works Turbo T2/T5The S Works Turbo tire sets the standard for a fast and durable performance tube type race tire. Our all new Gripton T2 center compound is the fastest, most efficient compound we have ever developed. T2 is placed in the center of our dual compound for speed and longevity on the straights with T5 compound on the shoulders for incredible grip through the corners. Weve improved the tires puncture protection by 8% with all new hybrid Kevlar Blackbelt