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To Run Flat or not to Run Flat tyres

3.3K views 11 replies 9 participants last post by  Alan G  
#1 ·
Hi,

What tyres would you recommend for daily usage and a once in a while road trip? RF or regular? Performance, comfort, etc…
Is it possible to fix a puncture in RF tyres? (I saw several comments that claim that a tyre must be replaced)

And what is your opinion on Bridgestone Potenza S001 vs. Michelin Pilot Sport 4 ZP?

The car is 120i, tyres spec 225x45 R17 91W
 
#5 · (Edited)
I am going against the current trend and say go for run flats.
Can you imagine trying to change an a drivers side flat on any busy motorway,you are taking your life in your hands.
Even worse on a wet winters night,every drivers nightmare.
Better to have run flats that will allow you to drive at least 50 miles @50 mph max to nearest safe service area.
Ok the ride quality may be harsher but apart from that it is like running on rails with precise handling at any speed .
I love my bridgestone runflats.:)
 
#6 ·
I wouldn't change the runflats just 'cos they're runflats, I'd wait till they were low enough on tread to make a change cost effective, but then I'd change to non-runflats, whatever flavour you fancy, but Pilot Sports get good reviews .. :) As to changing a drivers side tyre on a wet motorway, I've needed to once (Sons car, normal tyres, Fiat Idea 1l), but instead carried on <25mph in the hard shoulder to the next junction, off and onto a Lay-by to change it. Like @Alan G I also carry a set of plugs in mine, but son doesn't and they wouldn't help 'cos the valve had ripped out!!

You can't cover every eventuality
 
#7 ·
For sure there is a slight detriment to ride quality with run flats. Running fractionally below the recommended pressures helps ameliorate this without adversely effecting wear or handling.

Personally, I'd stick with RFT, my G31 530 had Michelin Premacy 3 all round, they proved a great tyre in all conditions.
You can repair a run flat provided the damage is not to the sidewall and it's not been run too longer distance whilst deflated. Most big chains will say "no mate" and sell you a new one but smaller indies will repair them no problem.
One other thing, If you get a flat with a conventional tyre and continue driving it's almost certain you'll trash the rim of those expensive alloys!
 
#9 · (Edited)
Those were the days ahhh,black and white tv,woodbine cigarettes.

The origins of the commercial self-supporting run-flat tire started in 1935 with a tire that had a fabric inner tire. The tire was advertised as a protection against blow outs, a common and dangerous occurrence in the 1930s. !!!
( still a possibility today when running with anything other than premium tyres,just look and see how many powerful BMWs are advertised with 'Jing a ling' tyres.)
 
#10 ·
I've ditched them on two BMWs and now ditched Michelins as well as they have fallen in performance in my view. I now run Good Year Eagle F1 Asymmetric 5 tyres (8x18") on flow formed wheels. Simply magnificent performance.
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But of course you do need a spare wheel, jack, release bar and torque wrench to complete the switch without a worry.

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#11 ·
I think the latest generation runflats have come a long way and am very impressed with the latest bridgestones, although they are a bit noisy. Ten years ago on early Rf on an E60, I managed 150 miles fully laden on a flat. I had a tyre at home, wasn't going to pay the prices I was quoted where I got the flat. Drove home, got tyre and went to local tyre fitters. Tyre virtually fell off rim when I stopped but rim was ok, I vote runflat😂