Having coming from 2 previous convertible Corvettes, I've always had Michellin Run-Flat tires on them.
Although ride & noise is not as good, I've always felt comforted with driving around with with them.
Now my current F-type R convertible has Pirelli P-Zeroes non run-flats. Although ride is great, I've still worried about driving around with just an inflator kit in the trunk & no spare.
Has anyone looked into or has replaced with Run-Flat tires...?
Or any experiences with which manufacturers who make exact replacement sizes for 20" run-flats?
Thanks,

 

It will be difficult to find the sizes needed in a run-flat. The closest that you will come on the rear is a 285/30-20, but nothing with anything close to the right width and diameter for the front.

 

Problem with run flats is no one stocks them when you do get to tire service center. As you bought new, you have roadside service for the term of your warranty. Press the correct little button near the mirror and call JLR to send service if you don't want to use tire goo.

 

Run-flats are good concept that executed poorly. I have not heard of any run-flats that do not both compromise handling and ride quality.

Unless you regularly drive by a nail factory, why would you want to compromise ride and handling ALL THE TIME on the small off-chance that you will get flat?

 

Forget run flat and get Michelin Pilot Sport 4S. Throw a plug kit in the boot for good measure. You'll be happier all around.

 

From my previous experience, I have found that run flats go out more quickly than regular tires. The likelihood of destroying your tire is much higher when you hit a pothole since it has really hard sidewalls (bubbles or cracks and the colder it is, the worse things become). Every time I hit a pothole I would just stare at my TPMS monitor to give me a warning that my tire is done for. I went through 10 tires front and back in a span of 3 years. I blew 3 of them in 2 days visiting my friend in NY. Only good thing is you are not stuck on the side of the road, you can mostly get to where you want and worry about it later. I think I had the Goodyear Eagles. Search the BMW community, people have complained about them in tons. If you live in an area where the roads are not bad, sure you can go for them, but then the chance of screwing up your normal tires are pretty slim as well. Oh yes, they are noisy as hell. Also run flats are crazy expensive.

 

The hardness of the RFT would make the car become a rock!

Forget the idea friend.

 

Thanks for all the posts above.
It's funny that being on the Corvette forums all these years, since they're orig fitted with run-flats, it's the opposite view of run-flats vs non, LOL.
I'm surprised that the suspension of this F-type is so rock hard, without driver selection to a softer "touring" suspension mode from current "sport or track" mode, esp in pothole-ridden Houston streets...

 

Had run flats on my TT, with all wheel drive cars if you have a problem with one tire you have to replace all 4 and they don't patch the tires (I think the trigger is 10% wear). Hit one nail, $2K later and I'll never use the damn things again. Have had several nails on the F-Type, all fixed for free at the local tire store a ton better than $2K. I wouldn't touch run flats with someone else's 20 foot pole...

 

+1. Also a pair of pliers to pull the nail out prior to plugging.

 

Another drawback to runflats is that they weigh far more than standard tires. Most MINIs came with runflats and the entire MINI community was abandoning them as quickly as the F-Type community abandons the P-Zeros.

 

+1. Ditch the RF's and go with the 4s. Then have some fun and know help is a phone call away should you need it.

 

I even ditched the Michelin run flats that came stock on my 2012 X5 Sport (315/30-20s on rear) with the exceptional All Season Conti DWS 06s

 

As stated runflat tyres tend to have more rigid sidewalls and may be heavier as a consequence.

That said they have been standard fitment on R35 GT-R (Nissan) for years and I don't believe anyone who has owned one or even driven one ever complained of poor handling or ride.