Which tires to choose?! 437M Rim

[S.Carter]

Hello all,
As I'm sure this has gone around and around (no pun intended). I searched through the forum but didnt quite find my answer. Apologies if this has been posted all over.

Its time for me to get new rear tires on my 437m's. I dont want spacers and the car is at stock ride height. I want to push the size as large as I can (295-305) without having to add anything else. I've been seeing folks using 295/30/19 but stock is xxx/35/19 correct? My question is regarding fitment with no alarms while still getting more grip. I live in the bay area and do track the car from time to time. With that said, what could I comfortably push the size to? Also, which tire would best serve me? I see folks saying not to mix tires as the compounds are much different but I'm unsure. I dont want a super sticky track tire thats going to wear out in 5k miles from normal use but also dont want an all weather tire thats going to slip around on the track. Opinions?!? thanks so much for everyones input and sorry if this is giving people ptsd with the repeats.

[IbizaSandro]

I have the same wheels as you. This thread helped me a lot.

http://f80.bimmerpost.com/forums/sho...ght=295+vs+305

If you're stock height, I believe you'll want to stick with a 35 series tire though.

[Suds]

I have two sets of 437m's.
295/30/19 & 275/30/19 with Michelin PSS
285/35/19 & 265/35/19 with Bridgestone RE-71r
Both these combos fit well, don't rub and no driving errors.

[S.Carter]

Thanks for everyones replies. I've since been digging through that 18 page post. Tons of information, think I'm going to go 275/295/35R19

[Ian1973]

I run stock front and 295/30 in the rear, PSS's.

They are wheels not rims. Just saying.

[mdefalco25]

What about stock wheels on Swift springs? Can I still get away with a 295/30 in the rear or 285/35? Thanks!

[S.Carter]

Originally Posted by mdefalco25

What about stock wheels on Swift springs? Can I still get away with a 295/30 in the rear or 285/35? Thanks!

I dont think you're going to get an answer to that in my thread. If you look at the first reply there is an 18 pager that deals with our rims and different ride heights etc. Going to have to do some reading to get your answer.

[g75y]

Originally Posted by S.Carter

Thanks for everyones replies. I've since been digging through that 18 page post. Tons of information, think I'm going to go 275/295/35R19

Hi. I am aiming for the same set up as you. Have you changed your tyres and do they fit OK?

[S.Carter]

Originally Posted by g75y

Hi. I am aiming for the same set up as you. Have you changed your tyres and do they fit OK?

I havent purchased my tires yet. I still have a decent amount of my fronts so I was going to see if I could get the 295 rear and keep the 255 in the front. My local shop said heck no, essentially I'll have to buy 4 all around because otherwise the ride would be terrible. They also advised I go 275/295 30 19 rather than 35. I havent asked why but imagine its because of ride height? Not sure, but I trust them.

[g75y]

Originally Posted by S.Carter

I havent purchased my tires yet. I still have a decent amount of my fronts so I was going to see if I could get the 295 rear and keep the 255 in the front. My local shop said heck no, essentially I'll have to buy 4 all around because otherwise the ride would be terrible. They also advised I go 275/295 30 19 rather than 35. I havent asked why but imagine its because of ride height? Not sure, but I trust them.

Thanks!
I decided to go with the stock sizes in the end.

[S.Carter]

Ah booo! I heard so many great things about going to bigger sizes but to each their own. Take care of that baby though!