Mixing runflats with non runflats?

[jamesgarbett]

Thoughts or experiences of this?

Eventually I want to switch to non runflats but cant bear the thought or cost of binning 4 perfectly good runflats

However one rear tyre is soon on the way out

Do people mix runflats and non on the same axle or is that a bad idea?

I could just about stomach replacing both rears but not all 4 tyres at once

 

[Nick W]

Never mix different types of tyre,it will play havoc with handling. Change them all at the same time and discover how good your car feels. Don't forget some type of puncture repair kit and pump might now come in handy.

 

[B21]

You can never mix different designs on one axle, and the mixture of run flats and non runflats on different axles is prohibited in some countrires, which kind of points to it being a bad idea.

So its a no!

 

[Jasonn]

I had 2 new run flats fitted when I bought the car when I noticed that the rears weren't looking too clever so binned all 4 (the new one did around 2-3k.

If you're worried about cost, look out for deals from black circles, print it out then go to one of those chains that will match anyone's price (I did that with F1 autocentres and used a few vouchers to bring the price down a bit more).

You can possibly sell the "good" run flats on fleabay - although personally I'd never buy second hand tyres again (don't ask me why but michellin pilots at a "good price" resulted in a blow out and brown trousers)

 

[Busterboo]

... cant bear the thought or cost of binning 4 perfectly good runflats

However one rear tyre is soon on the way out

To begin with, that's only 3 tyres. And, being runflats, they're not "perfectly good".

So, do what Jasonn says. 'Proper' tyres will make your whole car better and you'll thank him for it.

 

[enuff_zed]

Just for giggles, fit non runflats on the rear only.
I'll guarantee you'll quickly be going back to get the fronts done.

(Or possibly just quickly going backwards :roll: )

 

[sars]

It's all just hokum, Ideally you want the same make, model and size that your car was delivered with, that's what the car was developed with, anything else will give a slightly different driving experience, which may be better or worse in what is important to you.

Just make make sure you have the same make, model and size on each axle, obviously a different a tread pattern, size, compound or internal structure will give differing levels of grip, breaking efficiency, cornering ability, comfort and noise levels. In extremis, this could lead to an unpredictable driving experience especially when fitted on the same axle.

I don't understand why people put completely different sizes on their car and then state you can't put run flats on the front and normal tyres on the rear, changing make or model or size will alter your cars handling as will having extra load tyres or run flats

 

[brillomaster]

i keep writing and rewriting a reply, but in short, i'm with sars. dont mix across the same axle, but happy to mix front to rear, as long as you are aware of the limitations. the main difference with run flats is a super stiff sidewall, which leads to a harsh ride and more tendency to tramline.

 

[Scubaregs]

If it's not against the law it's personal choice. Personally I would not mix run flats on an axle with non run flats on the other.

 

[Nanu]

If it's not against the law it's personal choice. Personally I would not mix run flats on an axle with non run flats on the other.

not illegal just plain stupid.

 

[Nictrix]

I know its not a cheap thing to do but if you want to get the best out of your car a matching set of tyres is a good start.
In the past I have twice used either cheap tyres or mismatched tyres and have regretted it and will hopefully never do it again.

 

[Scubaregs]

If it's not against the law it's personal choice. Personally I would not mix run flats on an axle with non run flats on the other.

not illegal just plain stupid.

Unfortunately we cannot make stupidity illegal.

 

[Argyll Andy]

If it's not against the law it's personal choice. Personally I would not mix run flats on an axle with non run flats on the other.

not illegal just plain stupid.

Unfortunately we cannot make stupidity illegal.

Otherwise Paisley would be empty and Barlinnie bursting at the seams oke: :rofl:

Oh and Happy New Year to you and Lynn :drinkwine:

 

[sars]

If it's not against the law it's personal choice. Personally I would not mix run flats on an axle with non run flats on the other.

not illegal just plain stupid.

Is that a rational thought out response or just a gut feeling? For me it is exactly the same as increasing the tyre width or profile from a standard specification and so many on here are happy to do it.

 

[enuff_zed]

[ref]sars[/ref], for me the whole issue with runflats is a 'seat of the pants' feeling.
I would suggest that possibly your pants are a lot smaller than mine and can't detect such small changes. :wink:

Right! That's it! No more inferred compliments until 2024. :rofl:

 

[Zed Baron]

Tyres are the only things that connect you to the road. I was heading up the M6 a few months ago and the weather was atrocious, really heavy rain. I saw a few accidents - damaged cars by the side of the carriage way (even up an embankment), the Goodyear Eagle F1's I have fitted performed excellently... bite the bullet and put a decent set on the car.

 

[Scubaregs]

I wonder how many tyre shops/garages would be happy to do it?

 

[Wildfire]

I ran RFT's on the rear due to a similar issue. Fronts were gone, so I put on non-RFT's. Car was much more comfortable and you notice the difference immediately. Contrary to popular belief, unless you are driving at 100% everywhere, the car does not become an undrivable monster that tries to spit you into the scenery every moment possible. It was fine and got me around for 6 months.

The biggest difference was the ride. Non-RFT's just make the car so much more comfortable and quieter. I agree with sars, try and keep each axel the same, but once you get used to a car, you get used to it. People change wheel sizes etc and haven't spun off when they pulled away. I switched to non-RFT's as quick as I could and the difference was massive

I went for a fully square set up in the end and the biggest difference was the weight difference of the wheels.

I have in the past had to run a car on a different tyre on one axel, a totally different wheel actually, due to having to get the car home and the car didn't explode or spin off in to oblivion, although I would not recommend this.

 

[sars]

[ref]sars[/ref], for me the whole issue with runflats is a 'seat of the pants' feeling.
I would suggest that possibly your pants are a lot smaller than mine and can't detect such small changes. :wink:

Right! That's it! No more inferred compliments until 2024. :rofl:

EZ, why thanks hon, though seriously if your type profile is 40% and over, they're fine and on anything less they're not.

 

[mcbutler]

Thoughts or experiences of this?

Eventually I want to switch to non runflats but cant bear the thought or cost of binning 4 perfectly good runflats

However one rear tyre is soon on the way out

Do people mix runflats and non on the same axle or is that a bad idea?

I could just about stomach replacing both rears but not all 4 tyres at once

NO - no reputable tyre dealer will fit NRF to a RF car unless you change all 4. I tried this on my first Zed, not a singke dealer in Plymouth would do it so I called Michelin to try and get them on my side - they also said flat NO - end of............ If Michelin give you advice its probably the best youre gonna get