Rear tyres recommendations

Portisz4

Member
Hi all.
I need a pair of 255 30 r19. I have potenZA tyres at present and they are runflat.

The potenZA are just too much money for me and no idea if they are any good.

Any one recommend good tyres or anything that are not so expensive? Think will need to stick on rfts
 
Source some from ebay, best to have matching corners.

https://www.ebay.co.uk/itm/2-X-255-30-19-91Y-RUNFLAT-BRIDGESTONE-POTENZA-REO50A-WITH-4-5MM-TREAD-/125145827825?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=710-127635-2958-0

Or

https://www.ebay.co.uk/itm/2x255-30R19-91Y-Bridgestone-Potenza-RE050A-RSC-RUNFLAT-NO-DAMAGES-6-5mm-D984P-/363735254310?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=710-127635-2958-0

Both of these are decent deals.
Also, you are protected by ebay / paypal if they are defective or not as described.

Some people will frown upon this, but the numbers and buyer protection justify it in my opinion.
 
Ditch the runflats if at all possible, the car will be si much nicer to drive.

As for decent value brands, look at kumho, toyo or falken. A little more would be hankook or goodyear, the creme de la creme would be michelin or continental.

Dont buy secondhand tyres, especially not bridgestone potenza re050s. They are a very old tyre design now, and were average at best when they were new.
 
After reading quite a few tyres threads on here after I had my 18" Z4 wheels refurbed last year I bought a set of Kumho Ecstas for £400 delivered from Black Circles and have been very pleased with them.

If you want to stick to run-flats Pirellis are the best I've had so far on other BMW models.
 
I would like to dump the run flats but it does worry me. To be honest I haven't had a puncture in 10 years though.
£220 for a tyre is a lot but it is what it is though.

To be honest it's the worst car I've ever driven for noise. Horrendous to be honest. It's like driving on stones, just horrid.

I might try 4 of these. Surely can not be any worse...

https://www.camskill.co.uk/m55b0s1132p189222/Rockblade_Tyres_Car_Rockblade_525_-_255_30_R19_91Y_XL_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_B_NoiseClass%3A_2_Noise%3A_71dB
 
post_id=1908971 said:
I might try 4 of these. Surely can not be any worse...

https://www.camskill.co.uk/m55b0s1132p1 ... se%3A_71dB

I’m genuinely hoping that’s a joke :o

I’m not saying that it has to be absolute top quality that goes on and everyone has a budget and without stating the obvious but they are the only things keeping you in contact with the road so budgets would be a no no for me. I’ve run khumo/avon/vredistein as a very good alternative to premium tyres. I’m running Avon ZV7’s on my E90 and they’re great. That’s the lowest sort of spec I’d want to go for a car like this tbh
 
Portisz4 said:
I might try 4 of these. Surely can not be any worse...

https://www.camskill.co.uk/m55b0s1132p1 ... se%3A_71dB

Like Andy I really wouldn't want to put those on a Z4. :o

I wouldn't even put them on my 3 Series!
 
For cost vs performance you can't really beat Goodyear F1's, yes there are higher rated tyres, but they tend to be more expensive.

Some would argue that you shouldn't mix run flats with ordinary tyres, but in the same way you shouldn't mix brands or types series, as long as you have the same make and series on the same axle, risk is minimal unless you're driving on the limits of adhesion. There is a place for budget tyres, it's safer to have cheap tyres than bald ones, but just look at any of the reviews on https://www.tyrereviews.com/ and see how dry/wet breaking distance changes between cost, ultimately this should be a priority, most of us only need really good tyres when you need to stop unexpectedly and suddenly. If you want a comfortable and quieter ride swap the 19's for 18", that extra wall thickness certainly helps.
 
I've bought cars with cheap and/or old tyres on them - I would strongly recommend against. There's really no point buying a rear wheel drive roadster and then putting rubbish tyres on it, it's like signing Cristiano Ronaldo and making him play in flippers. You've bought a car with 19 inch wheels and unfortunately the tyres are going to be expensive.

My choice would be to go non run flats and get some Toyo's for just under £140 each, but I'm not sure about mixing run flats and non run flats. For the past few days I've had Continentals on the back and Michelin on the front and have experience no problems, but you might not be so lucky with a greater difference between tyres.
 
Yeah no budgets going on it but i am seriously considering getting rid of the runflats now.

I could try a couple on the rear and then replace the fronts in a bit.

Avon Toyo or kumho appear reasonable. Any thoughts ?

I can't stand the ride anymore. They have to go, it's awful.
 
Portisz4 said:
Avon Toyo or kumho appear reasonable. Any thoughts ?

All good tyres, I think you would be happy with each of them.

Tyres are a bit like wine - the mid-range stuff is the best value. Sure, if you're really into your wine you can buy a a nice bottle of Michelin PS4S and you'll enjoy every drop, but you'll be getting 5% more quality and 100% more marketing. If you really don't care about tyres but need some on your car you can buy a cheap set of Blossom Hills, but what you'll actually be buying is packaging and transport costs, with a few bits of rubber thrown in for free.
 
Portisz4 said:
Yeah no budgets going on it but i am seriously considering getting rid of the runflats now.

I could try a couple on the rear and then replace the fronts in a bit.

Avon Toyo or kumho appear reasonable. Any thoughts ?

I can't stand the ride anymore. They have to go, it's awful.

IMHO Khumos out of that lot. Very similar all round but khumos had a slightly better wear rate that the others :thumbsup:

The current Avons on the E90 are there because of a promotion at the time and were £80 cheaper than khumos but I would have any
 
Just revisiting my thread here and a warning for other people. If you can even get under the z4 that is , check your tyres


I have just had an mot. All four tyres are badly destroyed and deformed on the inside. So me trying to watch the tread wear gauge is a complete waste of time. 2 or 3 mill across the main tyres until the wear line comes in and thinking they are ok is not a good idea. Thank goodness for MOT's. How they think they can bring in Mots at two year intervals is beyond me. These tyres had weeks left and I do not drive it hard.

I hate the runflats , it's a disgusting ride and I was beginning to hate driving the z4 every day. Further I can not afford over a thousand pounds for them.
So, I'm going to try 4 standard tyres. Everything and everyone one says it's the way forward. I have rac and bottles of goo.

Let's see....
 
It sounds like your MOT did you a favour then!

God luck finding some non-runflats and hopefully you'll fall back in love with your Z4. :thumbsup:
 
I've seen some comments recommending Michelin as the top over the top. Nobody mentioned Pirelli, anyone has any comment? I'm about the change tyres on mine.
 
When choosing tyres it pays to pay attention to the specific variant not just the manufacturer brand.

The Pirelli P6000 is one of the worst tyres ever sold, borderline dangerous, yet most of Pirelli's products are decent and the PZ4 would be a good match for a Z4.

A Michelin Cross-Climate is very different to a Pilot Sport.

If in doubt or it's just too confusing with so many options, you'll not go wrong with the latest version of the Michelin Pilot Sport (now up to number 5) or Goodyear Asymmetric (now up to number 6) assuming you want summer tyres. These two variants have been market leaders for many years. Their price differential versus mid-range tyres is only about 15-20% or about the cost of a tank of fuel for 4 tyres, and can be less than that if you shop around.

If you want to spend less then a number of good mid-range options exist but choosing requires navigating a plethora of options.
 
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