Ditching the runflats help?

bryand · Post by **bryand** » Wed Mar 27, 2019 4:51 pm

As Formula 1 autocentres and currently doing a deal on Michelins (£13 off per tyre) plus £100 cashback from Michelin I thought now would be a good time to take the plunge and bin the RFT's.

I've done a fair bit of searching around but could do with a yes/no answer, I'm set on going 255/35/19 at the rear for some extra needed comfort but just not sure about the fronts, 225/35/19 or 235/35/19? This decision seems to come down to what wheel and suspension set up you are running. With that in mind I'm running a 20i E89 with M Sport springs and 326 alloys, any advice is greatly appreciated.

Dellboy1948 · Post by **Dellboy1948** » Thu Mar 28, 2019 1:30 am

I ditched my R/F for Dunlop Max RT2s 225/40 R18 front and 255/35 R18 back, great grip, smoother ride, quieter, just remember to carry tyre sealant and pump.

bryand · Post by **bryand** » Thu Mar 28, 2019 5:02 pm

Already got a pump as I am currently nursing a slow puncture in one of the RF's hence another reason to make the change

Lazza · Post by **Lazza** » Thu Mar 28, 2019 11:57 pm

You don’t need the deeper profile to improve the ride, just swapping out the run-flats for normal tyres will do that. I change to a deeper tyre to give the alloys just a bit more protection.
235/35/19 - 255/35/19
That’s on a 2009 35i on standard suspension.

Adil_3 · Post by **Adil_3** » Fri Mar 29, 2019 12:21 pm

Ive changed to toyo proxies t1 sport. Smooth as butter grips like anything and wet grip is spectacular!!! Massive difference

warmasice · Post by **warmasice** » Fri Mar 29, 2019 9:59 pm

General consensus is that 255/35/19 at the rear is the way to go. However, it would be worth finding out if people have gone for 225/40/19 or 235/35/19 at the front... And whether their cars are lowered on m sport or eibachs etc.

bryand · Post by **bryand** » Sat Mar 30, 2019 10:55 am

Thanks for the replies people

Z4-forum.com

Z4-forum.com