The Potenza RE050A RFT (Run-Flat Tire) is Bridgestone’s Max Performance Summer run-flat tire developed exclusively for specific BMW, Ferrari, Mazda and MINI vehicles. The Potenza RE050A RFT is designed to provide temporary extended mobility for a distance of 50 miles at up to 50 mph even after a puncture has allowed complete air pressure loss. The Potenza RE050A RFT 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.

The Potenza RE050A RFT features a high-grip tread compound molded into an asymmetric tread design. Stable outboard shoulder elements, intermediate tread blocks and a continuous center rib provide responsive handling, high-speed stability and traction on dry roads, while circumferential and lateral tread grooves pump water out from under the tire’s footprint to minimize hydroplaning and aid wet traction. A continuous rib adjacent to the inboard shoulder promotes even wear and resists inside wear generated by suspensions that specify negative camber alignment settings.

The tire’s internal structure includes twin steel belts reinforced by spiral-wrapped nylon to stabilize the tread area and enhance handling, high-speed capability and ride quality. The structure of the Potenza RE050A RFT also features Bridgestone Side Support Run-Flat technology reinforced sidewalls to support the vehicle after a puncture causes a loss of air pressure.


  1. I love this tire the vehicle was definitely designed for the tire . I average about 10,000 to 15,000 out of rear ties 255/30/19 and 20,000 to 25,000 out of fronts 225/35/19. I’ve had to use the run flat twice and both times car felt safe and responsive both times was on Friday so had to use it thru a weekend around town and even though 50mi at 50mph I used it for about 75 and 150mi till my tire arrived with no issue but have smaller 335i.I did try non run flats for a year at around 35,000 miles wear didn’t change in the 5/9 options available for the car but it did give the feel of blown shocks (minor bouncing and shudder) because of the shock and control arm setup. I went back to run flats and all suspension issues corrected themselves


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