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Replacing run flats with normal tyres..

Alloy wheels and tyre discussion
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sars
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Re: Replacing run flats with normal tyres..

Post by sars » Wed May 23, 2012 7:26 am

Commando Mortician wrote:This is the tire that I would have purchased, if I didn't decide to keep the Potenza's. I will replace the run flat tires when they are worn, and will replace them with this tire.

http://www.treaddepot.com/review/zrs3a.html
Hmmm, 40,000 mile tread wear warranty..... what's that all about then, I'm pretty good on tyres but not 40,000 miles good especially on a RWD sports car
Gorgeous SFR Z4 M40i 8)
Gone 2017 Iridium SL400, 2015 435d xDrive Convertible, 2012 E350 CDi Convertible, 2010 DSB Z4 sdrive30i, 2008 Audi A4 Cabriolet, 2006 Phoenix Yellow Z4 2.5Si, 2003 Saab 9-3 Convertible

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Arron1970
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Replacing run flats with normal tyres..

Post by Arron1970 » Thu Jun 14, 2018 10:41 am

Sorry if this is a stupid question - but is there any technical implication of fitting non run flat on other systems within the car?

Thinking for example of the tyre monitor - does this still work with the non run flats?

Also I guess your screwed if you get a total blow out but a can of puncture repair will do for minor issues - is this what most people do or have people fitted a spare wheel?

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Replacing run flats with normal tyres..

Post by Smartbear » Thu Jun 14, 2018 11:11 am

Arron1970 wrote: Thu Jun 14, 2018 10:41 am Sorry if this is a stupid question - but is there any technical implication of fitting non run flat on other systems within the car?

Thinking for example of the tyre monitor - does this still work with the non run flats?

Also I guess your screwed if you get a total blow out but a can of puncture repair will do for minor issues - is this what most people do or have people fitted a spare wheel?
Tyre pressure monitoring still works fine with non-runflat tyres, most people carry a can of tyre gloop (or a puncture repair kit) some carry a space saver in the boot :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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Arron1970
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Replacing run flats with normal tyres..

Post by Arron1970 » Thu Jun 14, 2018 11:31 am

Smartbear wrote: Thu Jun 14, 2018 11:11 am
Arron1970 wrote: Thu Jun 14, 2018 10:41 am Sorry if this is a stupid question - but is there any technical implication of fitting non run flat on other systems within the car?

Thinking for example of the tyre monitor - does this still work with the non run flats?

Also I guess your screwed if you get a total blow out but a can of puncture repair will do for minor issues - is this what most people do or have people fitted a spare wheel?
Tyre pressure monitoring still works fine with non-runflat tyres, most people carry a can of tyre gloop (or a puncture repair kit) some carry a space saver in the boot :thumbsup:
Rob
Thanks Rob :thumbsup:

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kis
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Replacing run flats with normal tyres..

Post by kis » Mon Jul 02, 2018 11:24 am

Bit more detail on why to move away from runflats if you fancy a read! http://bmwspecialistreading.co.uk/why-w ... lat-tyres/
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

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Replacing run flats with normal tyres..

Post by JamiesZ4 » Tue Jul 10, 2018 5:56 pm

Interesting that they mention in that article the following:

"We do however advise removal of runflats at your next tyre change and select a branded set of conventional tyre. There is no need to change all four tyres at the same time, It is perfectly safe to change to non-runflats in pairs (as long as you have matching tyres/systems on the same axle)."

Contrary it would seem to common held beliefs that you shouldn't run a pair of run flats with a pair of non run flats... :wink:
Current - E89 Z4 SDrive 3.0i - last of the normally aspirated six cylinders
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Replacing run flats with normal tyres..

Post by kis » Tue Jul 10, 2018 10:32 pm

Don't think so? No issues with running a mixture so long as the tyres on the same axel is kept the same. Not ideal like, but if they're spanking new...
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

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Replacing run flats with normal tyres..

Post by AC5L4T3R » Wed Jul 11, 2018 10:23 am

I'm getting quite annoyed with the firm ride and the sliding whenever I hit a pothole - however, I've just recently had my rear tyre changed and the other 3 were changed when I get MOT done in October. Since then I've done 5k. Is it worth changing now and selling the tyres that come off?
2003 Sterling Grey 2.5i - RHD car living in a LHD country.

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Replacing run flats with normal tyres..

Post by kis » Wed Jul 11, 2018 10:54 am

Yes. Might be hassle trying to sell depending what tyres/brand they are. But that's what I'd do :thumbsup:
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

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Replacing run flats with normal tyres..

Post by Surfwooder » Sat Sep 01, 2018 11:14 pm

My wife and I currently own 2 BMWs, a 2008 328ic and my 2009 Z4. I bought the Z4 this past April, and it came with run flats. My wifes car came originally with run flats. But, we lived in the New Orleans area, which is notorious for deep pot holes. The run flats suffered big goose eggs on the side walls and had to be replaced. After replacing several tires from this damage we shifted to conventional tires, and bought a spare tire kit, which included a jack, wheel, doughnut tire and wheel wrench in a nice black bag. It came from a company in the US, called Bavarian Auto, located in Portsmouth, NH, USA. The spare tire system was used only twice in the last 5 years. Once the RFT were off the BMW, the ride was amazing, I replaced them with Michelins and never looked back. As for the Z4, when the RFT need replaced, I'll go the standard construction tires. Here in New Hampshire, the roads are a dream compared to Louisiana. I advise, get rid of those expensive RFT on your car. I'd do two at a time, on the same axel

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Replacing run flats with normal tyres..

Post by ackers888 » Tue Mar 08, 2022 8:17 pm

Re replacing run flat tyres with normally aspirated, I drive a Z4 2.0 S-Drive and would like to know what type/make folk would recommend? Currently have run flats 255/30/R19 91Y Potenzas … what should I buy in the non-run flat range ?

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Replacing run flats with normal tyres..

Post by Darkangelv2 » Fri Mar 11, 2022 10:03 am

ackers888 wrote: Tue Mar 08, 2022 8:17 pm Re replacing run flat tyres with normally aspirated, I drive a Z4 2.0 S-Drive and would like to know what type/make folk would recommend? Currently have run flats 255/30/R19 91Y Potenzas … what should I buy in the non-run flat range ?
If you want the 'best', most folk will recommend Michelin Pilot Sports (4S i believe is the latest with 5 coming soon).

In the Mid-priced, i've done well with Uniroyal Rainsports, Kumho PS91 (or PS71) and Vredesteins.
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Replacing run flats with normal tyres..

Post by Elmore » Sun Apr 03, 2022 11:05 pm

Hi guys
I have practically new Bridgestone 19” run flats on my 2016 z4..the ride is hard as hell..do you think none flats will make enough difference to justify the change?
Anyone got any experience about this?? I really welcome your input…thanks

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Replacing run flats with normal tyres..

Post by Smartbear » Sun Apr 03, 2022 11:45 pm

Elmore wrote: Sun Apr 03, 2022 11:05 pm Hi guys
I have practically new Bridgestone 19” run flats on my 2016 z4..the ride is hard as hell..do you think none flats will make enough difference to justify the change?
Anyone got any experience about this?? I really welcome your input…thanks
Vast majority are pleased with the change, loads of info on here about it if you use the search function :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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