Newbie with new car

Stagman75 · Post by **Stagman75** » Mon Mar 05, 2018 4:51 pm

Hello All.

My Son has just bought a 2.5l E85 which has done 41k miles, drove it 400 miles home, it was all over the road especially in lane 1 of the A1. Tyres all have plenty of tread, unfortunately. NSF Goodyear Eagle F1 RFT, dated 2714. OSF Bridgestone Potenza RE 050 RFT, dated 4910. Rears both Primewell PZ900 Non RFT dated 0213. I guess the problem is the different fronts, the Bridgestone is too old and will be first off. The car will be a daily driver and not crazily driven....I hope!!
Option 1 ) Replace the Bridgstone with a F1, will that work well with the used F1? and the Primewells?
Option 2 ) Fit 2 new F1's on front RFT or conventional?
Option 3) Replace the whole lot, as I'm not sure about Primewalls, if so do I go conventional or runflat? I guess both have the option of "rim guard"?

Is the F1 a good choice of performance : cost?

Thank you for your help.

John.

Smartbear · Post by **Smartbear** » Mon Mar 05, 2018 4:54 pm

Hi john, some owners swear by the rf tyres but most just swear at them! Not heard of those rear tyres so I’d recommend changing all 4 over to a recognised brand of non rf’s, you should lose the tramlining effect & also get a softer, more compliant ride

Rob

RickRob · Post by **RickRob** » Mon Mar 05, 2018 5:07 pm

I wouldn't be driving far with different tyres on the same axel.

When I got mine it had quite worn, but legal, Vredstein Ultrac Sessantas on the front and Dunlops on the rear - all non-run flats. I was concerned that the car was on a constant quest to find the next hedge/ditch and it tramlined all over the place.

All of the above went away with Goodyear Eagle F1s on the front. When the time came I put the same on the rears, but that made little difference.

I have yet to read a post on here where someone went back to run flats having had non-run flats.

I have no experience of run flats on the Zed as the M didn't have them in the first place. I have them on my Cooper S and they seem OK, but the Mini's suspension is rather more forgiving than the Zed's.

jimmybell · Post by **jimmybell** » Mon Mar 05, 2018 5:13 pm

i'd say replace all 4 with something midlevel or better (vreds/goodyears/etc), sadly the most expensive option.

adam1985 · Post by **adam1985** » Mon Mar 05, 2018 5:27 pm

I would replace all four plenty of options, i have vredesteins on mine but Uniroyal rainsports are also a good tyre

Marlon · Post by **Marlon** » Mon Mar 05, 2018 5:41 pm

Option 3) but use non-runflats. I'd recommend Goodyear Eagle F1s or Vreds. Gonna cost best part of £500 but will be worth it

Mr Tidy · Post by **Mr Tidy** » Mon Mar 05, 2018 9:54 pm

Welcome to the forum by the way!

I'd also replace all 4 with a decent brand of non-runflat.

We quite like to see photos of member's cars if you have any.....

Tyreman · Post by **Tyreman** » Mon Mar 05, 2018 9:58 pm

Same again I'm afraid.........ditch the lot and get a matching set

Ditching the runflats will transform the handling and stop the tramlining........runflats & non runflats shouldn't be mixed so a suitable set of non runflats will make the car a far more enjoyable place to be

buzyg · Post by **buzyg** » Mon Mar 05, 2018 11:11 pm

Welcome.

ditch the run flats, simples.

Stagman75 · Post by **Stagman75** » Tue Mar 06, 2018 8:57 am

Thank you all for the welcome and advice, it all makes sense and I will replace all 4 with non run flats.
John.

Mr Tidy · Post by **Mr Tidy** » Tue Mar 06, 2018 9:37 pm

Good idea, John.

Now what about some photos?

Z4 would be good, but we wouldn't mind if they were of a 75 Stag!

Stagman75 · Post by **Stagman75** » Thu Mar 08, 2018 8:31 am

Rumbled

I’ll sort some out.

kis · Post by **kis** » Thu Mar 08, 2018 1:18 pm

As mentioned above, you want to change tyres on axels in pairs. So the fronts need it as they're different. The rears also need as they're some sort of budget tyre. Always stick with mid-range or premium brands. Goes without saying but the tyres are keeping you on the road, important not to skimp on them!

Stagman75 · Post by **Stagman75** » Mon Mar 12, 2018 4:40 am

Full set of PS4’s ordered from Blackcircles, thanks for your advice.

Behr · Post by **Behr** » Mon Mar 12, 2018 7:43 am

Can’t believe no one has mentioned 4 wheel alignment yet?

Not all these problems are to do with the the tyres. I went through the same thing, and by far the best improvement was following a KDS alignment. Not saying tyres may NOT be your answer, but alignment is worth checking next. After that take a look at the sticky steering articles by using the search function here.

Z4-forum.com

Z4-forum.com