Michelin Pilot Sport A/S Plus Radial Tire - 225/45R17 91Z 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