The continental competition tubular road tyre is the choice of tyre for pro road racers and triathletes its the most dependable tyre in the pro pelaton and has proven itself time and time again on the world stage including cadel evans win at the tour de france in 2011with a combination of the 22mm dimpled black chili compound and reliable construction the competition tubular increases grip while also lowering rolling resistance all this technology doesnt affect wear and 4 layers of punct