[selmeralto]

Are they?

This is my first car with run-flats. I've had 4 flats in 2 years.

Could be my bad luck but I'm wondering whether others out there have had similar "luck."

[selmeralto]

Oops. Meant "Run" flats in title, of course. Flats are rarely fun.

[selmeralto]

For the record, I have Michelin Pilot Super Sport tires.

[aozer]

If you have the MPSS then you don’t have run flats

[selmeralto]

Thanks very much for catching this. I'll check the tires the next time I head out to confirm what I've got.

[SteveInfante]

In the over 30 years of driving cars I have had a grand total of 4 flat tires. 3 of those were run flats. I don't know if it's luck or karma but I ditch them as soon as I can.

[delvec03]

yes. after my 2nd flat in 6 months I ditched mine for Michelle a/s3+. better ride, no flats, repairable.

do it.

[selmeralto]

Well, thanks again to aozer. I do have MPSS and they are not run-flats. So the premise of the question is shot: it's probably Philly potholes that are the culprit - at least in my case. On the original question, a TireRack advisor said he had no sense that run-flats were more prone to flats than non RF tires.

Oddly, the shop that fixed my last blow-out put a Michelin Pilot Sport A/3 + on the car. Not a good idea to mix tires, I know. But I was toying with getting tires with a little more traction than the MPSS anyway and I do have some tread wear, so I'll probably switch out the other three for MPS A/S 3 +. Staggered.

[ham_hock_]

To add, in case people come to this post later. YES, run-flats are more prone to sidewall failure. I've had my car 18 months—7 of those months have been on summer wheels/tires, with the remaining 11 months on the stock, run-flat Cinturato. In those 11 months on the stock run-flats I've had 3 irreparable sidewall failures. Ridiculous.

[overcoil]

Originally Posted by selmeralto

Well, thanks again to aozer. I do have MPSS and they are not run-flats. So the premise of the question is shot: it's probably Philly potholes that are the culprit - at least in my case. On the original question, a TireRack advisor said he had no sense that run-flats were more prone to flats than non RF tires.

Oddly, the shop that fixed my last blow-out put a Michelin Pilot Sport A/3 + on the car. Not a good idea to mix tires, I know. But I was toying with getting tires with a little more traction than the MPSS anyway and I do have some tread wear, so I'll probably switch out the other three for MPS A/S 3 +. Staggered.

Tuesday was up in philly w my 235 on ’mpss as/3’ and the waze app was pretty good at warning of potholes ahead.

[Luftwaffe1O1]

Ive destroyed a few super sports. Actually had a pretty bad tire failure when the car had only 4k miles on the clock. Tore a gash about 2inch wide in one of the rears. But ive also had a few flats over the years, but most of those were due to constriction near my work.

[714_2er]

Originally Posted by aozer

If you have the MPSS then you don’t have run flats

Now that’s interesting, I went to a local big o tires to get a tire repaired and both the manager and tech said I had runflates due to the “Star” symbol on the tires.🤔

Took it to my buddies work, he pulled the screw out and there was no leak, guess I lucked out🤷🏽*♂️

[aerobod]

Originally Posted by 714_2er

I went to a local big o tires to get a tire repaired and both the manager and tech said I had runflates due to the “Star” symbol on the tires.

The BMW “star” marked tyres are just tyres approved by BMW, they aren’t all runflats.

[Maynard]

FWIW, I've bashed my alignment out of line at least 3 times over my first 20k miles without damaging either my summer RFT's (contisport 5's IIRC) or my non-RFT winter tires (conti's as well). Just installed non-RFT Contsisports, and the stock staggered wheels passed Hunter balancing, so they aren't warped/dented. I suspect that the variance in damage is more likely related to road-hazards than tire design, given that some can't go a season w/o losing at least one. I'm not super-careful, but I do try to dodge anything that looks like it could hurt. And I'd recc always checking your alignment after one of these injuries - that did eat up my original summers - apparently 'chopping' is a weak spot for the Conti RFTs anyway, but I was SOL b/c the alignment participated.

[Denk]

Run flats are crap! I was at my dealership recently and a customer who just had run flats replaced were back in for another replacement. I think they're designed to blow for running on flat bravado.

[redcars]

Got my 6th flat last night during 2 yrs of ownership. Running the 19" wheels. Going to the dealership tomorrow.

[littlelulu]

I've had 6 flats (run flat tires) in 17 months!!!! Totally unacceptable! Giving car back!

[SpiritedDriver498]

Originally Posted by ham_hock_

To add, in case people come to this post later. YES, run-flats are more prone to sidewall failure. I've had my car 18 months—7 of those months have been on summer wheels/tires, with the remaining 11 months on the stock, run-flat Cinturato. In those 11 months on the stock run-flats I've had 3 irreparable sidewall failures. Ridiculous.

The Pzeros are absolute garbage. 3 breaks in ~20k miles and now have two nails in the tires. I'm on this forum now to find alternatives