CONTINENTAL Gatorskin Tire - 27 X 1-1/4" - PolyX BreakerTires with DuraSkin sidewall protection have to be able to roll with the punches. They are used under the harshest conditions. On messenger bikes, the tires skid along curbs; on touring bikes, they cross continents without wearing out. In racing cycling, they have to endure tough tests such as the Paris Roubaix. The high quality polyamide fabric protects the tire casing against the worst conditions. These tires stand out thanks to their brown