Bridgestone Potenza RE050A vs Michelin Pilot Sport 4 — Compared

“I have RE050A runflat's on my 2012 Grandsport and agree completely that they are a great tire overall but you are fooling yourself if you think they provide comparable grip to a DOT track tire. I had Michelen run-flat's on my ZR1 wheels on my 2011 Grandsport and they were great until the tires hit 4/32 on the rears and then they became rocks at any temperature that I could spin up effortlessly at any speed. Used to give my wife fits snapping the rear-end around for no reason. Those were replaced with Continental Extreme Contact DW tires (non run-flat) because the rear Michelins were not available last year in ZR1 sizes.”

“My invoice says I travelled 71500km (just under 45K miles) on the RE050A .. but I do a lot of highway. I dialled out the toe front/rear to be toe neutral instead of toe in and rotated every 15K. Switch them out when the tread is near the wear indicators.”

“So here's whats on my car, and how I got here (2011 335d m-sport): Rear: RE 050 A, no designation of I or II, so I'm thinking they were first gen. The BMW dealership put them on the car at about 18k. Front: Original OEM from the factory RE 050 A I. I'm about to have these two replaced tomorrow after a major alignment issue has worn both outside front edges, although the car tracks straight... we'll see what i end up with tomorrow!”

“I basically always ran Michelins on the BMWs I had. Pilot Super Sport on the E91 335d (which unexpectedly did really well wrt longevity with 600nm+ and a heavy foot) and now PS4 ZP (so the runflat type) on my 320hp F31 330d. They are just really really good. Pretty pricey though.”

“Quote: Originally Posted by weston.__ I will be going down the non-rft route, Pilot Sport 4. You're not the only one to say the ride quality with non-rft is a massive improvement and this is the reason why I will change once the time comes. I went from Bridgestone S001 RFT to 'go-flats' and have found the suppleness an obvious difference. Since I put the pressure to the mid point between the low and high load plated pressures I have yet to have any of the heartstopping thumps come through the suspension that the Bridgestone seemed prone to.”

“I was running pilot sport 4s on my MS. (19” wheels) I was lucky to get 13,000-14,000. I just switched to Kumho Majesty 9’s for about 1/3 the price. Currently have 4,000 miles on them and just to rotated. Fingers crossed I can get 13,000 miles out of them.”