What is the widest run flat that is available for 18" ?
sars said:The widest RFT is 275/35/18 or 265/30/18, however not sure if either will fit on an 8.5, you also need to consider the change in rolling diameter. The question why springs to mind
Maniac said:Two new Pirelli P Zero RFTs fitted today on the back. 255x30x19
£330 each fitted. Comparison with OEM Bridgestone;
IMHO Pirellis are quieter, bite better, more comfortable, and have a huge rim protector which is a genuine plus over the Bridgestone.
So yes expensive but I'm happy theyre an improvement. Tread depth should last me a while provided no more wheels decide to crack. I do still feel a wobble at the back so the tyres weren't to blame. Guessing that's the minor flat spot the garage found on both rears, not worth repairing but enough to feel it at around 25mph. Something to look at another time.
Kryton said:That's a rip off,a 295/30ZR 11"x 20" for a 991 are £395 for a cheap tyre or £490 for a decent make.
john56 said:For me Maniac makes a good point and its a point i had never given any thought too but im now feeling a bit better about having RFT fitted, my wife and myself both being in our early 60s standing on a motorway embankment in the middle of winter does not appeal at all, yes i know the chances are remote and i dont think BMW fitted them just for my benefit but in the end its all down to personal choice .
Cost is important so i took out insurance to cover any punctures for the next 3 years so i will be keeping my RF,s but like i say, thats my personal choice and others will surely have theirs .
+2wegras said:john56 said:For me Maniac makes a good point and its a point i had never given any thought too but im now feeling a bit better about having RFT fitted, my wife and myself both being in our early 60s standing on a motorway embankment in the middle of winter does not appeal at all, yes i know the chances are remote and i dont think BMW fitted them just for my benefit but in the end its all down to personal choice .
Cost is important so i took out insurance to cover any punctures for the next 3 years so i will be keeping my RF,s but like i say, thats my personal choice and others will surely have theirs .
+1![]()
Maniac said:Kryton said:That's a rip off,a 295/30ZR 11"x 20" for a 991 are £395 for a cheap tyre or £490 for a decent make.
A rip off because of their size? Not taking into account the lower sales volumes of a Run Flat tyre perhaps, or some other factor other than a pure rip off. Frankly a Z4 is expensive, and its primary reason is its a niche product. Just the same as RFT tyres and an unfortunate fact of life. I'm not happy about it, but just reading 'its a rip off' doesn't make me feel better about it lol.
So whats the alternative? (not ordinary tyres because BMW pi$$ you about on warranty issues then)
Maniac said:I'm not happy about it, but just reading 'its a rip off' doesn't make me feel better about it lol.
Kryton said:Maniac said:I'm not happy about it, but just reading 'its a rip off' doesn't make me feel better about it lol.
Sorry about my comment![]()
lolWhiteknight said:sars said:The widest RFT is 275/35/18 or 265/30/18, however not sure if either will fit on an 8.5, you also need to consider the change in rolling diameter. The question why springs to mind
I was thinking/hoping it would give better rim protection,
...and I love the look of wide tyres :wink:
I want to go as wide as possible front & back. So would like to know the widest I can fit to my ellipsoid wheels if anyone can help me