Grand Prix Supersonic

The fastest clincher in the world! The Grand Prix Supersonic offers exceptionally low rolling

The fastest clincher in the world! The Grand Prix Supersonic offers exceptionally low rolling resistance that rivals that of our renowned tubulars. Our super-fine, polyamide casing combined with a thin layer of ASC® Silica treads compound is extremely lightweight and is designed to allow unusually high inflation pressures. Possibly one of the best time trail tyres ever designed. For 2005, the tyre has been modified to include more carbon in the tread compound. This improves wet grip and

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