Michelin Pilot Super Sport Tire  - 255/40R18 99Z XL Inspired by the same engineering that has powered 13 consecutive victories at 24 Hours of Le Mans. Optimized through technology of Variable Contact Patch 2.0 and Twaron belt package for long even wear. Bi-compound delivers excellent dry braking using LeMans-inspired compound on the outer shoulder and the latest generation of wet-oriented elastomers on the inner portion of the tread.