Summit Ultramax HP A/S 235/40R18 XL

All-Season Ultra High Performance Passenger Car Tire.* Solid center rib* Silica compound* High angle tread grooves* Taper tread edges* Four wide circumferential grooves* 50,000 Mile Limited Treadwear Warranty* For improved high speed stability and reduced road noise* For superior wet traction and reduced rolling resistance* Enhance water evacuation and improve wet handling and hydroplane resistance* Promote uniform contact pressure for increased stability, even wear and a quiet ride* Enhance water drainage to maximize grip on wet surfaces