[James550i6spd]

hey guys,

Can anyone comment if rubbing issues will be present on a 20 x 10.5 ET45 rear wheel fitment on a 335i M-sport.

Sorry it has been discussed before but many owners have their cars lowered with camber dialed in to make this work. I don't intent to modify my suspension right now...

It seems Concept One, Vossen and Velgens make 20s with the perfect offset for our F30s but I am not sure if I will have rubbing issues on stock M-sport on 335

[vip]

I'm on a 255/35/20 rear with 40ET, no rubbing. Stock msport suspension.

[mia335i]

no rubbing these are all lowered too 20x10.5 et 45 and 275/30/20

[Dippydo]

I am on 275/30/20 on a 10.5 ET42 and in order to tuck the rear a little bit to be safe we added 1.5 neg camber. It was not rubbing on normal driving, but if you hit a big dip or bump the H&R coil overs are a little too soft so it would kiss the inner outer of the well. My shop is a Porsche racing shop and is a certified Ferrari and Lambo repair center and they advised to add the camber for one to increase the handling a little more and to be safe. 8,000 miles on the tires and they have worn perfectly even across so in short no negative effect on tire wear at all.

If you are not lowering it, then you won't have any issues rubbing. You could step the tire up to a 285 and not rub if you were not lowering the car.


Edited: ET on mine are 42 not 45

[metrickid]

If you ask me, an ET45 10.5" wheel will just look silly if not lowered. It will be 1 cm outside the fender basically.

[PabloK]

Originally Posted by Dippydo

My shop is a Porsche racing shop and is a certified Ferrari and Lambo repair center....

Yup Imola is legit

[Dippydo]

Originally Posted by PabloK

Yup Imola is legit

Yup that's them. Most impressive shop I have ever been too. Like a car show every time you walk into there...LOL... Only place I trust.

[James550i6spd]

Originally Posted by Rossifumi

If you ask me, an ET45 10.5" wheel will just look silly if not lowered. It will be 1 cm outside the fender basically.

yeah that's what I did not want to run into..having the wheel stick out outside the fender.

Theoretically, according to online calculators, 275/35/20 on a 10.5 ET45 wheel will only stick out more by 12MM wider than stock (18x8.5ET47)...which is equivalent of putting 12MM spacers on stock setup....which a lot of people do with no problems.

Of course i rather trust actual experience than an online calculator

[metrickid]

Originally Posted by James335i6spd

yeah that's what I did not want to run into..having the wheel stick out outside the fender.

Theoretically, according to online calculators, 275/35/20 on a 10.5 ET45 wheel will only stick out more by 12MM wider than stock (18x8.5ET47)...which is equivalent of putting 12MM spacers on stock setup....which a lot of people do with no problems.

Of course i rather trust actual experience than an online calculator

I don't think you put in the right values, a 10.5 ET45 is 27mm further out than a 8.5 ET47.

On my car (I have a similar offset) the top of the wheel is just about flush when lowered with coilovers. When I just had stock M Sport suspension it was about 10mm outside the fender and me personally think it looks stupid - like you bought the wrong wheels.

Not the best picture, but you get a feel for it. This is how a 20x10.5 ET45 will look on M-sport suspension.

[James550i6spd]

Originally Posted by Rossifumi

I don't think you put in the right values, a 10.5 ET45 is 27mm further out than a 8.5 ET47.

On my car (I have a similar offset) the top of the wheel is just about flush when lowered with coilovers. When I just had stock M Sport suspension it was about 10mm outside the fender and me personally think it looks stupid - like you bought the wrong wheels.

Not the best picture, but you get a feel for it. This is how a 20x10.5 ET45 will look on M-sport suspension.

Thanks for the pic..gives a good perspective. I may end up going conservative on the width and upping the profile. Some members are running 35-profile on 20x9 and it is looks low enough for me.

Plus a 245/35/20 squared setup will save on tire costs

[mia335i]

Originally Posted by James335i6spd

Thanks for the pic..gives a good perspective. I may end up going conservative on the width and upping the profile. Some members are running 35-profile on 20x9 and it is looks low enough for me.

Plus a 245/35/20 squared setup will save on tire costs

35 offset all around 20x9 245/35/20 will be perfect

[vip]

Anyone here try a 285/30 or even 295/30 in the rear on a 20" setup? Would 295/30/20 even work?

[CK335iMSport]

Had Velgen VMB5's installed late last week, rears are 20 X 10.5 ET45 and tire specs (rear) are 275/30 R 20. The car now has the Bilstein/H&R Sport Spring combo. now, but rode on stock M-Sport suspension for a couple days prior to suspension install, no rubbing on either setup. Perfect specs IMHO...

[Dippydo]

Originally Posted by vip

Anyone here try a 285/30 or even 295/30 in the rear on a 20" setup? Would 295/30/20 even work?

285 will work if it is not lowered and will rub with a little weight added like passenders. Lowered you will rub. Forget 295.lol

[vip]

Originally Posted by Dippydo

285 will work if it is not lowered and will rub with a little weight added like passenders. Lowered you will rub. Forget 295.lol

Just put on the m performance suspension, so far zero rubbing and I am running a 255/35/20 in the rear. Thinking my next set, I may go to a 285/30/20.

What do you think? I'll save up .3" in diameter on the rear 285, if I choose to go with that.

27.03" diameter - 255/35/20

26.73" diameter - 285/30/20


The m performance suspension is very stiff, so doubt I would run into any rubbing issues.

This is my rear ride height after 2 days.

[amf]

I am the second pic at top of page. Mine rear do not rub at all. the is probably credit card clearance from fender very nice and tight fitment. My fronts do rub on inner fender lip only on big bumps. There is a fender lip on the front fenders that is not there on the rears.
I am on h&r super sport springs.


good luck

[vip]

Originally Posted by amf

I am the second pic at top of page. Mine rear do not rub at all. the is probably credit card clearance from fender very nice and tight fitment. My fronts do rub on inner fender lip only on big bumps. There is a fender lip on the front fenders that is not there on the rears.
I am on h&r super sport springs.


good luck

you probably rub because 1) you are on h&r super sports and 2) the stock m sport shocks are just plain soft.

[AMJAM]

Here is mine I am running 255/30/20 the only way the car was going this low

[pukicabuki]

Originally Posted by Dippydo

285 will work if it is not lowered and will rub with a little weight added like passenders. Lowered you will rub. Forget 295.lol

295/25/20 lowered on H&R sport springs.

-0.5 camber in the rear. It has only rubbed when I put 3 adults in the back seat.

[Dippydo]

Originally Posted by pukicabuki

295/25/20 lowered on H&R sport springs.

-0.5 camber in the rear. It has only rubbed when I put 3 adults in the back seat.

Post pics. Would love to see this. All the shops I talked to said 285 would rub lowered. Then again I am running ET 42 not 45. What is your ET?

[pukicabuki]

Originally Posted by Dippydo

Post pics. Would love to see this. All the shops I talked to said 285 would rub lowered. Then again I am running ET 42 not 45. What is your ET?

I believe its an ET45. It would definitely rub if it was any lower.

It's the wife's car, so I didn't go crazy with it. Then again she steals my M3 in the morning if she leaves before me and its lower and louder.

[Dippydo]

OK I thought the H&R sport would have brought it down more. You still have a couple finger gap. Looks nice. I wanted to go down to a 25 series but wasn't sure. Definitely will now that I see this. What is you front tire specs?