MICHELIN Pilot Sport AS Plus 275/40ZR18 99Y (Quantity of 1) Michelin Pilot Sport A/S Plus tires are the only UHP tires in the Michelin lineup to offer TriFusion  Compound State-of-the-art directional tread pattern and wet-weather silica compound Michelin Pilot Sport A/S Plus tires are the first to make use of the enhanced MaxTouch Construction