What tyre sizes will fit my E90?

[joelwtk 0]

Hi all,

Currently have an E90 M-Sport with the stock style 194 wheels - 17x8J ET34 fronts and 17x8.5J ET37 rears.

Stock tyre sizes are 225/45/17 fronts and 255/40/17 rears.

Need new tyres for the rears - there's not many options for this tyre size out there, but looking at a tyre/wheel size calculator online, it says a 225/45/17 would fit my rears.

I'm new to this, so would fitting a square tyre setup on a staggered rim setup even work? Alternatively, is there a different size tyre that would fit my rears?

Cheers

Edited November 13, 2024 by joelwtk

[Vass 1046]

Check out Hyperdrive, seems to be plenty of options for that size. Alternatively, you could go 245/40R17 whilst retaining much of the tyre width. I wouldn't go 225 on a RWD car, not sure if they would work on a wider rim but hey, I'm not gonna tell you off either.

[Olaf 3408]

8 hours ago, joelwtk said:

Hi all,

Currently have an E90 M-Sport with the stock style 194 wheels - 17x8J ET34 fronts and 17x8.5J ET37 rears.

Stock tyre sizes are 225/45/17 fronts and 255/40/17 rears.

Need new tyres for the rears - there's not many options for this tyre size out there, but looking at a tyre/wheel size calculator online, it says a 225/45/17 would fit my rears.

I'm new to this, so would fitting a square tyre setup on a staggered rim setup even work? Alternatively, is there a different size tyre that would fit my rears?

Cheers

You don't want 225/45R17 on the rear - it's a stretch.  On the 8.5" wide rear you want the 255/40R17 as recommended.  

Why would you not want 255/40R17?

[Olaf 3408]

FWIW I run 245/40R17 on my rears, Style 194 on e46.  it's the right circumference and fit for e46 staggered setup on Style 68.
245/40R17 probably the closest thing with a few more options than Bridgestone RE-050 runflats in 255/40R17.

Unless you're running with a spare tyre, you will want runflats again.

Another option is to get square setup rims and whatever the standard tyre size is for E9x with factory square setup.

[Phil 0]

Hi @joelwtk what did you go for in the end and are you happy with them 6 months later? I need a replacement set and have the same wheels / tyre configuration that you posted.

Thanks!

[joelwtk 0]

12 hours ago, Phil said:

Hi @joelwtk what did you go for in the end and are you happy with them 6 months later? I need a replacement set and have the same wheels / tyre configuration that you posted.

Thanks!

@Phil I actually didn't end up getting any - I passed WOF & have decided to most likely part ways with the car at the end of the year due to personal circumstances. I was planning on sticking to the stock size.

My car still has runflats on & my fronts still have about 5mm left so I was planning on just biting the bullet and getting Bridgestone Potenza runflats - i.e. the only ones they have in that size. They're around $500 each.

The other option would've been 4 new non run-flats and getting something middle of the range - there's some Nexen and Nankangs for about $200-$300 per tyre, so would've come out to about $1k too.

Let me know what you end up going with. I'm going to miss my car.

[Phil 0]

7 hours ago, joelwtk said:

@Phil I actually didn't end up getting any - I passed WOF & have decided to most likely part ways with the car at the end of the year due to personal circumstances. I was planning on sticking to the stock size.

My car still has runflats on & my fronts still have about 5mm left so I was planning on just biting the bullet and getting Bridgestone Potenza runflats - i.e. the only ones they have in that size. They're around $500 each.

The other option would've been 4 new non run-flats and getting something middle of the range - there's some Nexen and Nankangs for about $200-$300 per tyre, so would've come out to about $1k too.

Let me know what you end up going with. I'm going to miss my car.

They are a great car! Mine is 2006 and just about to hit 84,000kms, so still has a bit of life in it yet.

Ive decided against run flats, but will stick with the stock setup of 225/45/17 and 255/40/17.

So far have received a quote for Nankangs but not really sure what else is out there at a similar price point. Anything around the $500/600 mark per tyre is feels excessive given the age and value of the car...