The Potenza RE050A is a Max Performance Summer tire designed to complement the performance of sports cars, sports coupes and sport sedans. While the Potenza RE050 is used as Original Equipment on the supercharged Mercedes-Benz S55 AMG sedan, a Potenza RE050A Scuderia version is used on the 12-cylinder Enzo Ferrari supercar, and a Run Flat version is used on the BMW Z4 sports cars and 5-Series sedans. The Potenza RE050A was developed to provide good traction along with responsive and predictable dry and wet road handling. It is not intended to be driven in near-freezing temperatures, through snow or on ice.
On the outside, the Potenza RE050A features a high grip tread compound molded into an asymmetric tread design. A continuous center rib, large tread blocks and stable shoulder elements provide responsive handling, high-speed stability and traction on dry roads, while circumferential and lateral tread grooves are aimed to pump water out from under the tire's footprint to minimize hydroplaning and aid wet traction. A continuous circumferential rib adjacent to the inside shoulder blocks enhances wear quality to help reduce noise throughout the life of the tire, especially on cars with alignment settings that specify negative camber. Internally, the Potenza RE050A features twin steel belts reinforced by spiral-wrapped nylon to stabilize the tread area and enhance handling, high speed capability and ride quality while minimizing weight. The fabric cord body and hard rubber sidewall filler help blend uniform ride quality with steering response and lateral stability.