Cool running undertread: Avon have managed to fit a special compound rubber between the radial belts and tread to minimise heat in the belts during high speed use.Longitudinal grooves: Three broad grooves around the tyre resist aquaplaning allowing deep surface water to shoot along them before being cleared by lateral slots.Avon unique Opti-Noise software scrambles the frequencies produced by tread blocks on the road, thereby minimising the total sound produced