Technology from hell!Thanks to its DuraSkin™ anti-tear fabric, the Grand Prix 4-Season holds up under extreme conditions. In the Paris - Roubaix race, the Hell of the North , cyclists equipped with DuraSkin™ enhanced tyres have the fewest tyre related problems during the race. Incorporating our special wear resistant carbon compound, the tyre is characterised by very good mileage performance as well as excellent adhesion on wet roads and at low temperatures. With the 23mm, 25mm and 28mm versions, the Grand Prix 4-Season makes it possible to select the right tyre for various road qualities and comfort requirements. A double Vectran® Breaker belt under the tread raises the puncture and cut protection to the highest level available on the market. The Continental GP 4-Season is the standard: full score in all categories! The tyre is lightweight and rolls well. It achieved by far the best result in offering fantastic grip and puncture protection, even in the wet and cold. Not just the top winter tyre. The test results from Road Bike Magazine 02/11.Weight 230gFolding beadMax.Inflation 120(psi)Click Size Guide To Enlarge