Turbo S-Works T2/T5 Tire 700 x 28mmThe S Works Turbo tire sets the standard for a fast and durable performance tube type race tire. Specialized's all new Gripton T2 center compound is the fastest, most efficient compound we have ever developed. T2 is placed in the center of their dual compound for speed and longevity on the straights with T5 compound on the shoulders for incredible grip through the corners. Specialized has improved the tire's puncture protection by 8% with all new