[jomnycaqe]

Hi Guys i have f30 lci and i want to replace my sportline wheels and tires(225/50/r17 with Pirelli centurato P7 rft). Im gonna buy replica m5 wheel(18') or style 397m but im not sure about tires.Should i buy Run flat tires?Can i use normal tires(non rft).Is this situation creates annoying problem? Rfr tires are sooo hard and uncomfortable.If answer is yes, which tires should i buy for 18' wheels.Thanks for reading.

[.BMW.]

Michelin PSS (non RFT)!

Regarding tire sizes for 18" square setup there are many options:
225/45-18, OEM size
235/45-18, 1% taller than OEM
245/45-18, 2% taller than OEM
235/40-18, 2% shorter than OEM
245/40-18, 1% shorter than OEM
255/40-18, OEM size (might rub the suspension and/or fender up front depending on offset and tire brand)

[tboooe]

The absolute best upgrade I did was go to non run flats. You will have no issues. Do it!

[smithf80]

Do it.

[jomnycaqe]

guys i will buy Goodyear Eagle F1 asymetric 2 tomorrow.Should i do square setup? or fronts 225/45/18 and rears 255/35/18 ??

[alohasurftoad]

Originally Posted by jomnycaqe

guys i will buy Goodyear Eagle F1 asymetric 2 tomorrow.Should i do square setup? or fronts 225/45/18 and rears 255/35/18 ??

if you want best handling/performance do square of 245/40/18

if you want looks stagger with 225/45/18 and 255/40/18 not 35

not sure what tire brands are available to you in turkey but the michelin pilot super sport is best

bridgestone potenza s-04 next best then the goodyear eagle f1

[bmw-again]

I have ran michelin pss and currently running continental dw extreme contract. Any max performance summer is a huge upgrade over run flat. Pss are best but I do like continental. They are getting a little noisy due to wear at 10k staggered though especially on rear.

[liveevil]

Mine came stock with staggered set up and it was 225/50/18 front and 255/45/18 rear.

[liveevil]

Apologies. Mine was on a f34. just noticed the topic was on f30z

[jomnycaqe]

Originally Posted by alohasurftoad

if you want best handling/performance do square of 245/40/18

if you want looks stagger with 225/45/18 and 255/40/18 not 35

not sure what tire brands are available to you in turkey but the michelin pilot super sport is best

bridgestone potenza s-04 next best then the goodyear eagle f1

Thanks for the answer bro. I want original M size.So fronts are 225 , rears are 255.So im gonna buy goodyear eagle asymmetric f1 tires with that size on your message.Thanks a lot.