06-25-2019, 06:26 AM | #1 |
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Runflat debate, continued
I still have some miles left on my Goodyear F1 Asymmetric runflats on my M550i. As I approach decision time, I am still torn about what to do. For sure, I do not want to give up trunk space for a spare tire, jack, etc. I have a pump, plugger kit, and slime already. So, my decision involves the Michelin PS4S, or going with the much more expensive Michelin PS3 ZP runflats. I know this has been discussed ad nauseum, but would appreciate any info anyone has on the Michelin runflats. I had the PS4S on my M4, and loved them. Thanks for the help.
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06-25-2019, 09:57 AM | #2 |
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I have put Michelins on my cars for sometime now and I am a big fan of run flats. They have saved me several times. Michelin now has high performance all season run flat tires called Pilot Sport AS/3+ ZPs (Zero Pressure). I put a set on my earlier 535xi and loved them. I am due for tires on my Z06 this year and will put them on and whenever my Goodyears wear out on the 540xi I plan to put them on. Best part: Costco sells them at a very good price and from my experience does a fine job balancing and installing them. Just my $.02--Bob
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06-25-2019, 02:54 PM | #3 |
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Thanks. Exactly the kind of info I was looking for. Anyone else have experience with the Michelin runflats? One of my concerns is that, should I have a tire failure on the road somewhere, the runflat may get me to a safe place, but the chances of finding a replacement in BFE are almost nill. Easier, I suspect, to find a PS4S, but not sure about that. Anyway, could get stranded for a couple of days either way (and even true if I had a spacesaver spare, I suspect...since I like backroads and countryside), while a tire gets express delivered to where ever in BFE. However, I would like any info available from those who have tried the Michelin runflats, and/or opinions about what I just said. Thanks.
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06-25-2019, 03:11 PM | #4 | |
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06-27-2019, 03:08 PM | #5 |
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Sure wish I could get more feedback on the new Michelin AS/3+ZP tires. No one else has ever used them? I reiterate, a spare in the trunk is not an option for me. Drove my Mini, Porsche, M4 and several motorcycles for years without a spare, all across the country. Just seeking info on the newer runflats before I decide whether to go with those, or the Michelin PS4S. Anyone else?
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06-27-2019, 09:23 PM | #6 | |
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If I'm looking at the right tire, they only have a few sizes out right now according to their website and tire rack.
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06-28-2019, 11:55 AM | #8 |
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06-28-2019, 12:41 PM | #9 | |
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Plus, anything would be better than the Goodyear F1 option for the G30. Horrible tire. I switched my 2017 to Pirelli PZero PZ4 and those are light years better than the Goodyear. Now that the PS3ZP is available I'll be using those next tire swap. In my experience, everytime I switch to Michelin I'm pleased.
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06-28-2019, 03:12 PM | #10 |
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I agree, the Goodyears have to go. My experience has been the same. Just wish I could get some info on ride quality, etc about the Michelin runflats before I pull the trigger. However, I'm certain it will be an improvement. Also interested in opinions about sidewall damage risk in a Michelin runflat vs the PS4S, as I have already had to replace one of the Goodyears after hitting a pothole. Love the look of the 668Ms and the 20's, but almost wish I had gone with the 19's.
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06-28-2019, 05:00 PM | #11 |
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I have them on my car. I wanted to go with the 4S but didn't want the hassle of changing out summer tires so I opted for a high performance all season with the 3ZP. I have been extremely happy with the handling performance of the tire, and believe me, I drive them hard. I can't speak to the ride quality on a non lowered car as mine is dropped fairly low.
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06-28-2019, 10:15 PM | #13 | |
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My dealer confirmed my findings when I told them how weird it was to have two sidewall blowouts from minor road anomalies. I've had run flats on cars for the past decade or so. The Goodyear F1 is the first and only tire that was a let down.
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06-29-2019, 06:51 PM | #14 | ||
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07-01-2019, 09:39 AM | #15 |
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You are right. Neither Tirerack nor Costco list the Michelins in our stock size (245/40R19), so my suggestion is incorrect for now. However, not entirely off base: Michelin does make a Pilot Sport A/S 3+ ZP (runflat) in a very close size--245/35ZR19-- that I expect would fit just fine although I don't know if the tire diameter (stock: 26.7"; A/S3 25.8") would work with our various systems. Any idea how to confirm that? i think that as long as all four tires are the same size things should be fine. I expect they will sometime soon make the 245/40s as well for our G30s. Costco lists a Bridgestone tire and Tirerack list several including the Goodyears I have now.--Bob
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07-01-2019, 12:44 PM | #16 | |
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07-02-2019, 10:43 AM | #17 | |
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07-02-2019, 02:44 PM | #18 |
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Great food for thought, indeed.....may investigate that. Don't know if the wheels are different widths, bet they are. Was also playing with the idea of going with 245/40R20s on the front and 275/35R20's on the rear (7 series sizes), but not sure about that, if it would fit my wheels, etc. Have heard others say it worked fine for them with better ride and fewer sidewall problems. I know it makes the car 1/2inch higher and the speedo and odo reads 4% slower. Don't know if any warranty issues with that. Any thoughts about that? Anyway, lots to think about, and I appreciate all the help.
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07-07-2019, 12:11 PM | #19 |
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do you guys think going to non-run flats will fix my chronic sidewall bubble problem i am currently experiencing.
I currently have Pirelli cinturato p7 245/40r19 on my 540xi Msport. Have had to replace 5 tires in 10 months due to sidewall bubbles or blowouts. I've read numerous posts that the ride quality is better with go flats; I'm not as concerned about that, just would like to stop taking my car to the shop. Also will 18 inch rim / spare tire kit fit over the blue Msport brakes. thanks first time posting. |
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07-09-2019, 03:41 PM | #20 | |
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You've replaced 5 tires in 10 months because of sidewall bubbles or blowouts? Yikes. How terrible are your roads there? I could understand 1 or 2, maybe even 3 if you just had terrible luck with pot holes and blow outs, etc, but 5 in 10 months?! It sounds like less of a tire issue and more of a road issue or driving pattern that is beating up your tires, IMO. I'd be wary that switching to a non run flat tire would stop your sidewall bubbles and blow outs the way you described. Have you checked to make sure they're properly inflated? Do you try to avoid pot holes if you can or do you run right over them?
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07-09-2019, 07:33 PM | #21 | ||
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Roads in Indianapolis have significantly deteriorated over the past two years. If I see a pothole I dodge it. But you can't see all the potholes, and sometimes traffic prevents you from dodging a pothole. The last bubble I got I don't even recall hitting anything. |
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07-12-2019, 02:06 PM | #22 |
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I feel your pain. Properly inflated my tires, as I usually do weekly, on Wednesday night. Thursday, drove to DFW to pick up my Granddaughter, who is spending the week with us while the kids are on vacation. Driving through Waco, in a road construction area, hit a huge pothole which was unavoidable, in the fast lane....doing about 60 in a 55, BTW. Immediately the right front tire was at zero pressure. Second time for me since I bought the car in September, and this was the same wheel, so it had the newest Goodyear F1 Asymmetric on it. Luckily, was able to stop safely and drive down the access road to Discount Tire, which was only 2 miles away. They had a Nitto go flat which would fit, so I was temporarily saved. Made it home safe today, and have already ordered four Michelin PS3 ZPs in stock sizes. Hard to find, Discount Tire had to call Michelin to get them. They'll be in next week, so will report on how they do. Thanks for all the info you guys have provided to me. If I continue to have sidewall problems, will probably look for PS4S in a 255/40/20 and 285/35/20 size for my next tire. This was a hard knock, a large pothole, but IMHO, the tire sidewall should not have split as easily it did. Is it Goodyear F1s or is it runflats in general? Time will tell.
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