Continental Grand Prix 4000S II 650c Road Tire 650C X 23 Black;

Boasting global appeal as the best all-around race tire on the market, the Continental Grand Prix 4000S II 650c Road Tire is now available in a new tread design with updated technology. Continental's latest Black Chili Compound is super fast, grippy as all-get-out, and tough enough to deliver mile after mile of high-speed, high-performance service. Vectran breaker layer underneath provides unsurpassed puncture protection. If you want reliability, longevity and all-out performance for your race machine, the Grand Prix 4000S II is the only choice. Updated Black Chili tread compound with carbon nano particles delivers 26% lower rolling resistance, 30% more grip and 5% longer mileage, plus it's self-cleaning Vectran Breaker belt is lighter and tougher than aramid belts, 5x stronger than steel and resists water, punctures and cuts 3-ply casing and 330 TPI provide additional reinforcement Tread wear indicators help you gauge the true life of the tire, eliminating premature replacement or overuse Handmade in Germany