07-01-2019, 08:49 AM | #2 |
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I got the spare. Run flats aren’t bullet proof. See a recent thread here about someone whose RF went completely flat in an incident.
At least with the spare I can drive the car without having to pull the trigger immediately on a new replacement tire or set of tires. Runflats are expensive, and may not be available in some rural areas. Did you notice that on the new build configurator you can get non-runflats? But only with Msport options. I plan to trade this car in four years, and will be able to make much more informed decisions about the features I will want (this is my first high-end car). For a long-term vehicle I will most likely want non RFs, but I’m curious to see how these hold up. |
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07-01-2019, 11:28 AM | #4 | |
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While for the most common tire failure, a puncture by a nail or screw, the runflats allow continued driving for a while (or longer if the leak is slow enough that you can counter it by adding air), more severe damage, such as a torn sidewall, will leave a runflat, or any tire, undriveable for any distance. For that reason I too have a spare on my X5. For trips, where we may be quite some distance from a compressed air supply, I carry the BMW tire kit with compressor and sealant. |
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07-01-2019, 12:20 PM | #5 |
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I have never in my life had a flat tire. Most of the time I am in rural areas where roadside assistance is likely to take all day (which is true even in urban areas).
I worked for AAA in the 1980s, in the Washington DC metro, and roadside assistance was horrible then and probably still is. With the run-flats, I like the idea that I have choices other than waiting by the side of the road for hours. Most likely alone. For me, the run-flat capabilities coupled with the spare is cheap insurance that I could get to a service station on my own, and tackle the issues from there. |
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07-01-2019, 12:30 PM | #6 |
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Roadside assistance and runflats have been fine for me for last decade or so. Do live in an urban area with easy access to everything I'd need if I got stuck somewhere though.
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07-01-2019, 02:54 PM | #7 |
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Crossing fingers that the RFs don't catastrophically fail. On my previous X5, I had two larger perforations that were not repairable. One happened to be within 1/4 mile from a tire shop, and they had the tire I needed just by chance (it was a staggered set, and the rear tire that let go was not a normal size you'd find in stock).
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07-01-2019, 03:04 PM | #8 | |
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Thread here: - pics of the minor damage: https://www.bimmerpost.com/forums/sh...php?p=24944750 - full thread: https://g05.bimmerpost.com/forums/sh....php?t=1626566
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07-01-2019, 03:37 PM | #9 |
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Has anyone used the mobility kit with run flat tires? My dealers parts dept. told me that they can’t order the spare tire kit anymore. I had even considered keeping a tire repair kit in the car just in case, guess you could plug the tire & use the mobility kit compressor to pump the tire up.
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07-01-2019, 10:09 PM | #10 | |
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Even with my current run flat X3, I carry a jack, lug wrench, vise grips, pliers, 12v inflator, tire repair kit, spray water bottle, etc, etc so I can repair on the fly which I have had to do twice. I don't trust software, robots or run flat tires. |
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07-03-2019, 09:54 AM | #11 |
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07-03-2019, 09:59 AM | #12 |
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Reading some of the posts here, I think Run Flats might be a bit misunderstood. I have not had bad experience with them yet myself but have had a nail and made it directly to a shop for replacement no problem.
Check this good read out: https://www.tirebuyer.com/education/run-flat https://www.bridgestonetire.com/trea...run-flat-tires
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07-03-2019, 10:28 AM | #13 | |
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On a related noted, are people pleased with the shape of their wheels after a new tire is installed and rebalanced? On my Touareg, they popped/pried the old weights off with a screwdriver leaving an ugly scar on the inside but visible surface of the wheel. Are you seeing the same lack of concern for your property with your BMW wheels? |
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07-03-2019, 10:37 AM | #14 | |
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07-03-2019, 10:59 AM | #15 | |
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2020 models have non-runflat option
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I don’t mind paying a lot for a quality tire if it will give me 70,000 miles. But most folks report that the OEM tires last about 30k miles. I’ve also seen LOTS of comments about how standard tires ride and handle better. I plan to trade this car in four years - probably just about the time it needs new tires, or shortly after replacing them. I am awfully tempted to get another set of tires and save these, and put them back on when I trade. This way the car will have BMWs “approved” tires when I trade. And I can use the non-runflats I bought on the new car. Not sure how much difference it will make, but worth a try. It is QUITE interesting to me that 2020 builds offer a non-run flats option. Only with Msport upgrades, but makes me think that BMW is getting some pushback on runflats. |
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07-03-2019, 11:11 AM | #16 | |
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However, I do like the principle they are designed for, when getting a nail/screw or whatever, I'd much rather have the luxury of finding the right place and time to deal with it rather than be forced to stop and replace a tire on a dark, rainy, cold, unsafe shoulder of a highway. |
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07-03-2019, 11:16 AM | #17 | |
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Conundrum for sure. Next car I’ll make a command decision. |
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07-03-2019, 12:25 PM | #19 | |
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Wow, I haven't been to the build a BMW site in a few weeks, was just there, it got a massive overhaul. Its now more in line with how the UK and Europe site looks. |
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07-03-2019, 12:42 PM | #20 | |
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07-03-2019, 12:53 PM | #21 |
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Has anyone looked into self-sealing tires? I just read about them as being an option on the new Explorer. They seem like a good alternative to the stiffer sidewalled run flats, although i have to say that i have no complaints about the ride quality in either of my BMWs that both have run flats. I think it may be because both vehicles were built in the last year or two and run flats today are more comfortable than the ones introduced say 10 years ago.
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07-03-2019, 03:10 PM | #22 | ||
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