Continental's Grand Prix is one of the most popular road clinchers in the world. There is a trend towards wider tires in all cycling, from casual riding to serious racing. Wider tires actually roll easier, yield higher mileage and offer more comfort and grip. The 24c size gives you all the advantages of wider tires, while still being light enough to improve the ride of any racing machine. Of course, the Grand Prix is still known for extremely long wear and puncture resistance afforded by 3 separate casing plies and its Black Chili compound. Train on it, race on it, this is THE tire.