[No one]

Originally Posted by grouxp

Thank you all!

Unless someone wants to talk me out of it (please, don't be shy), I'm inclined to stick with runflats because (1) I'm no longer young and am therefore not inclined to change a flat in the Florida heat and/or summer rain and (2) I'd have to buy a jack, spare wheel & tire, and would lose most of my hatchback space.

So, that said, Costco offers the following runflats that would fit:

- Michelin Primacy 3 ($1,493 installed)

- Bridgestone Potenza S001 RFT ($1,738 installed)

Any thoughts on either of those, or am I just plain stupid to stick with runflats? Or, is there a better runflat I should get elsewhere? (I don't have to buy from Costco; am just used to buying tires there.)

Thanks again; I really appreciate you BMW veterans helping out this newby!

I am having Bridgestone Potenza S001 RFT for 13th summer season. Second set currently. Both star marked (made for BMW). The first one came from the factory (BMW never offered Michelin Primacy 3 to my knowledge, although I didn't watch very closely ). I was quite(/completely?) satisfied with my first set, that's why I chose the second easily. Also, Michelin doesn't bother to make its high-performance tyres in my size and my rear (staggered) size is VERY rare . Performance-wise - acceptable, provided I am not a racer, I don't track it and my car doesn't "suffer" excessive power (to have a wheelspin too easily). The car turns pretty confidently, like a BMW. Of course non-runflats should do better, but I am not ready to sacrifice the comfort of runflat puncture as I seem to really need it.

Two of my first set tyres had punctures (spikes and a nail, I am absolutely sure envious cocksuckers stuffed those under my wheels, I don't have a garage). It was like this: the tyre pressure monitor (rotation speed based, no tyre sensors ) informed me of supposed pressure loss. I stopped where safe/comfortable, checked with a manometer to confirm and find out which one and drove home. At home I made a necessary Internet research and drove to repair (ready to replace if I had to) the next day or later. I drove on the fixed tyres for many seasons since - no issues. And yes, if you care to drive "flat" really far you can use a mobility (sealant) set with runflat tyres as well.

[Westside Guy]

Originally Posted by grouxp

Thank you all!

Unless someone wants to talk me out of it (please, don't be shy), I'm inclined to stick with runflats because (1) I'm no longer young and am therefore not inclined to change a flat in the Florida heat and/or summer rain and (2) I'd have to buy a jack, spare wheel & tire, and would lose most of my hatchback space.

So, that said, Costco offers the following runflats that would fit:

- Michelin Primacy 3 ($1,493 installed)

- Bridgestone Potenza S001 RFT ($1,738 installed)

Any thoughts on either of those, or am I just plain stupid to stick with runflats? Or, is there a better runflat I should get elsewhere? (I don't have to buy from Costco; am just used to buying tires there.)

Thanks again; I really appreciate you BMW veterans helping out this newby!

Originally Posted by DanG

Get non runflats and an inflation kit. This will solve almost any common problem and the non runflats have a much better ride.

https://www.bimmerworld.com/Tools/BM...102333674.html

Originally Posted by StradaRedlands

That kit ^^^^ plus AAA plus a nice set of Pilot Sports and you're good to go!

The 2019 640i GT is exactly that, it is a Gran Tourer and a great car for long road trips. I would hate to be riding on runflats when there is a far better alternative. For driving in Florida I would strongly recommend Michelin PSS tires. You don't need a A/S tire for Florida, I have the PSS tires on my Z4 M40i which is my DD and strongly recommend them.

As mentioned there are inflation kits you can purchase and for a car out of BMW's warranty an AAA membership never hurts to have.

The PSS tires have received a 9 out of 10 rating on Tire Rack for both wet and dry conditions. Make sure you order the BMW star tires if you select the PSS tires.

[JABCAT]

Performance all-seasons like the Conti DWS-06 work great in hot climates such as FL & TX where I live. They also allow for driving below 40 degrees which is does get to in FL in the winter, and perform better in wet condition than summer high-performance tires.

I put Michelin Pilot all-season 4 on my wife's X3MC and the rears needed replaced with 25% of the tread warranty remaining. We received a $200 credit toward a replacement pair. When all 4 need replacing, I'll be switching to the Conti DWS 06 on her vehicle as well.

[BeEmVe]

Originally Posted by grouxp

Unless someone wants to talk me out of it (please, don't be shy), I'm inclined to stick with runflats because (1) I'm no longer young and am therefore not inclined to change a flat in the Florida heat and/or summer rain and (2) I'd have to buy a jack, spare wheel & tire, and would lose most of my hatchback space.

Most hate RFT. I am in that camp for several reasons. The usual comment is the ride. But there are other factors related to getting a flat.

Say one gets a flat (not in the sidewall) with RFT and lose significant amount of pressure. Once you drive on them for any significant distance the tire is technically toast because the sidewall while doing its job is now weaken. So you are replacing the whole tire.

Replacing a tire these days is a PITA as it will likely need to be ordered from the local warehouse which might take a day or two. That is fine if you are home. But on the road, not so much.

One can get around running flat on a RFT by immediately using an inflation kit to restore the require pressure and drive to service station which will hopefully be willing to patch the tire. Some will not patch RFT regardless.

When we replaced our OEM RFT the shop said it looked like one tire was was run flat as it was marbled on the inside which is what happens from the heat. To our knowledge it was never run flat. But had it needed repair a shop might have declined.

So to preserve the run flat capability and patch the tire one should treat RFT just like a go flat. If that is the case one might as well get go flats and enjoy the ride.

As mentioned up thread get tire kit and a AAA membership. Speaking of which they are individual memberships. My mother had one but not my father. That way she always had help regardless of location and when traveling they were together so they were covered.

For my spouse as we run summer and winter shoes for trips we have a jack and toss a spare in the boot. Which paid off in spades as she once got a sidewall flat while on a trip to LA. It was a Saturday and no shop could fix the flat or get a new tire until Tuesday. She tossed the spare on and drove 700 miles home the next day.

[Westside Guy]

Originally Posted by JABCAT

They also allow for driving below 40 degrees which is does get to in FL in the winter, and perform better in wet condition than summer high-performance tires.

It really depends on what part of Florida the OP lives in. I live in South Florida on the east coast between Miami and Ft. Lauderdale and it never gets that cold here so considering a A/S tire is a non issue for me. 😎

[zx10guy]

I'll echo the sentiments of using run craps. The OEM equipped Bridgestone run craps I had on my 1er were just miserable. Harsh ride where hitting any mild imperfections in the road would send a huge shock through the chassis. Those hard shocks eventually resulted in warping one of my 261 M wheels.

In addition, I've never had a flat with the run craps so never had to utilize the stiff sidewall feature. But the sidewalls both inside and outside were bubbled. Was told this happens quite often with run craps as I guess the sidewalls are stiff due to a double walled construction. I never looked into how run craps are constructed. But it made sense to me when I was told this. The inner wall would tear leading to air leaking through to the outer wall creating the bubble. Some bubbles are small but some can be very big and when this happens your tire is toast even if it hasn't been run with no air or has plenty of tread left.

And finally, some shops don't know how to handle run flats with unmounting/mounting. I know first hand about this when I took the wheels from my 1er to Costco for them to unmount the run craps and mount a set of Pilot Super Sports. The idiot that did the tire service proceeded to trash all 4 wheels that were in pristine condition. The dents/gouges were obvious and I was glad I inspected the wheels before loading them into my car. Costco had to file a claim with their insurance which paid about $700 to repair the wheels.

[No one]

So many haters here. Here's an article "Run-Flat Tires: Pros and Cons": https://cars.usnews.com/cars-trucks/...-pros-and-cons. It seems to confirm the stories I read about people driving on runflats with torn sides, as well as much farther than the promised minimum. A true runflat won't fail you!

On maintaining the correct pressure. The guy who installed my new winter set of runflat tyres inflated the left side ones as I told him, but the right side ones to the maximum allowed (provided on the tyre side) or even more: I only found that out a year after when doing the seasonal change for the next winter myself (that's when I inflate them). The tyres withstood that! Those motherfuckers can fuck up even when you are watching them working where you wouldn't even imagine they could!

A spare wheel has another inconvenience: "-Damn it!!! -I hope you have a spare wheel. -Yes, I do. But I don't have two!" (a movie quote).

[JABCAT]

Originally Posted by No one

So many haters here. Here's an article "Run-Flat Tires: Pros and Cons": https://cars.usnews.com/cars-trucks/...pros-and-cons. It seems to confirm the stories I read about people driving on runflats with torn sides, as well as much farther than the promised minimum. A true runflat won't fail you!

99.99% of people can't tell any difference between rft or zp tires and standard tires. It's not the 2010's and runflat technology has improved substantially. I've had both on a variety of cars - zero noticiable difference.

I currently have Michelin Pilot Super Sport ZP on my supercharged Z06. They replaced Continental Extreme Contact Sport non-rft. The only reason I didn't stick with the Contis was there were none available & I was stranded 200 mi from home. The MPSS ZP ride, handle, grip, as well as the Contis non-rft. And this car has 600 whp.

I really liked the Pirelli PZero rfts that came on my previous 3-series. They handled great, were quiet, good grip & ar 31k mi still had 5/32nds left when I traded the car in.

OP said he's not going to be racing around so a good performance all-season runflat is a great option.

[G30M]

Originally Posted by grouxp

I'm not into driving fast & sporty any more (I'm too old for that); I'm into a smooth, soft, quiet ride.

Continental Premium Contact. they are soft quiet and smooth.

Goodyear Eagle F1 Asymmetric 6 are fast quiet and smooth.

In my experience Michelin and Bridgestone are slightly harsher and more louder, but that's just me.

[BigMonkeyWrench]

Did Conti significantly stiffen up the sidewall on the DW series? Years ago I had the original DW and it felt like I was driving on 70 series balloons. It was squishy and steering felt like a marshmellow.

[StradaRedlands]

Originally Posted by BigMonkeyWrench

Did Conti significantly stiffen up the sidewall on the DW series? Years ago I had the original DW and it felt like I was driving on 70 series balloons. It was squishy and steering felt like a marshmellow.

They must have, they're really good now. How long ago was that?
I had the DWS06 on my 330i and also bought a set for our X5. It has taller sidewalls but they're fine.

[Brownpow121]

Originally Posted by No one

"All season" tyres won't do well in hot climate neither performance nor longevity wise. Mind your season.

Curious on this. I am in Florida as well. Summer vs all season vs. (?) in regard to longevity - what is recommended? I am just a daily driver in an x3 and performance isn’t a concern, just a good all around tire. Trying to get a comparison of longevity between the two. It’s only truly hot here for 3-4 months (In my ex-Yankee opinion)

[No one]

Originally Posted by Brownpow121

Curious on this. I am in Florida as well. Summer vs all season vs. (?) in regard to longevity - what is recommended? I am just a daily driver in an x3 and performance isn’t a concern, just a good all around tire. Trying to get a comparison of longevity between the two. It’s only truly hot here for 3-4 months (In my ex-Yankee opinion)

Here's an explanation of "all-season tyres" and when to use them: https://www.michelin.co.uk/auto/advi...l-season-tyres. Or let me put it the simplest for you: no, you don't need all-season tyres in the "humid, subtropical climate" of Tampa, Florida. Your winter is still summer from the tyres climate standpoint. So it is summer tyres you only need for both performance and longevity.

[Brownpow121]

Originally Posted by No one

Here's an explanation of "all-season tyres" and when to use them: https://www.michelin.co.uk/auto/advice/choose-tyres/what-are-all-season-tyres. Or let me put it the simplest for you: no, you don't need all-season tyres in the "humid, subtropical climate" of Tampa, Florida. Your winter is still summer from the tyres climate standpoint. So it is summer tyres you only need for both performance and longevity.

Thanks. From Michelins chart it seems either-or. Yes, I can easily run a summer tire year round here. My question is how much more longevity I’d get if I ran an all season rather than a summer tire. Guess it’s trial and error

[No one]

Originally Posted by Brownpow121

Thanks. From Michelins chart it seems either-or. Yes, I can easily run a summer tire year round here. My question is how much more longevity I’d get if I ran an all season rather than a summer tire. Guess it’s trial and error

An all-season tyre won't last at summer temperatures as long as a summer one because it's quite softer. It will melt and wear off fast. Michelin's diagram shows clearly it's summer tyres you need for your climate. But if you prefer experience to anything (why asking then?) be your own guest.

[freakystyly]

Treadwear, traction and temperature ratings numbers exist and are stamped on every tire. It isn't black magic... or is it?