Continental Grand Prix 4 Season 700x23 Tire 2 PackThe Continental Grand Prix 4-Season is the pro’s top choice when searching for an equal amount of high performance and extreme longevity. There are two layers of Vectran as well as Continental’s DuraSkin sidewall reinforcement to push this tire over the edge verses all other tires in the industry. The Vectran breaker is made of a highly sophisticated fiber and woven similarly to a spider’s web. This lightweight Liquid-crystalline polymer is melted and processed into a multi strand thread for extreme double layered protection without adding to the rolling resistance. The DuraSkin sidewall reinforcement has been tried and tested in races like the Paris-Roubaix to prove its prominence in the industry as the toughest that can be. These tires give you ample grip in wet and adversely cold conditions alike making this the most balanced tire so far. Available in 700x23, 700x28, and 700x32 in single packs. 700x25 Available as a Pair (SKU: 0604342).