[PLF69]

Originally Posted by Ravenseal

I'm on xDrive, so it's 245/40 squared. I tried to order 245/35 but Pilot AS4 in that size were backordered at Discount Tire.

That's what I taught after posting but its not because your Xdrive it's because of your wheel tire package. My M340i is Xdrive and came with staggered 225/255 setup.

I've ran 245/40-19 for the track last summer and never rubbed. This season I am installing 255/40-19, that's on 19x8.5 ET30 wheels and I have 3mm spacers up front, fingers crossed it will clear..

[Ravenseal]

Originally Posted by PLF69

That's what I taught after posting but its not because your Xdrive it's because of your wheel tire package. My M340i is Xdrive and came with staggered 225/255 setup.

I've ran 245/40-19 for the track last summer and never rubbed. This season I am installing 255/40-19, that's on 19x8.5 ET30 wheels and I have 3mm spacers up front, fingers crossed it will clear..

Ah, sorry. Thought I made it clear I was coming from 225 squared, meaning 8" wheels on all corners. I'd have to order new rear 8.5" wheels to do 225F/255R on these all seasons.

I did acquire a staggered set of summers from an M340i. They'll be on from June-September.

[G30M]

Originally Posted by Ravenseal

This thread seems a little bit more alive than the fitment thread on the G42 forums. Here is my 245/40/19 fitment up front on stock 791M 8" wheels - replacing OEM 225^2. Any thoughts on these gaps? Slightly worried about the gap between the top of the tire and the sprint perch. No rubbing yet…

is this the front or the rear? i presume front?

[Ravenseal]

Originally Posted by G80M4

is this the front or the rear? i presume front?

Front

[RawDog]

Originally Posted by ventjock

any rubbing?

i have 19x8 ET27 wheels and looking to go 245/40/19 all around with 15mm spacers.

What did you end up with?

I also have 19x8 i believe et 27 with 15mm spacers squared looking to ditch the run flats.

[erokkin]

Originally Posted by enginediver

Finally all done! Just put 13mm spacers on all 4. Also, running 245/40/19. I'll see in a few days if it rubs too much.

Looks perfect. What rock guards/Flaps are those?

[Hybridizer]

Confirmed just had my Pilot Sport 4S mounted on my 8" wheels on a square setup with 245/40/19's I also have adaptive suspension which I'm told makes the shock tubes a bit wider and more an issue. No rubbing at all, no spacers yet.

Ride quality is amazing, so happy to be off run flats as well as all season tires.

I would have optioned the car from the factory with the performance package. But I found this gem with 4K miles on it and went that route. Looking back I'm actually happier with this setup now, as I can rotate this sticky mofo's.

Not to mention having the smaller brake rotors made it easier to fit my 18" snow tires for winter too.

Super excited with the purchase, and no rubbing have at it!

[Mastamoe]

Originally Posted by Hybridizer

Confirmed just had my Pilot Sport 4S mounted on my 8" wheels on a square setup with 245/40/19's I also have adaptive suspension which I'm told makes the shock tubes a bit wider and more an issue. No rubbing at all, no spacers yet.

Ride quality is amazing, so happy to be off run flats as well as all season tires.

I would have optioned the car from the factory with the performance package. But I found this gem with 4K miles on it and went that route. Looking back I'm actually happier with this setup now, as I can rotate this sticky mofo's.

Not to mention having the smaller brake rotors made it easier to fit my 18" snow tires for winter too.

Super excited with the purchase, and no rubbing have at it!

Are you RWD or xdrive? I have a RWD model and am concerned about rubbing.


I just bought these tires and they are waiting to go on. I don't want to mount them if there will be rubbing. I did see a couple of accounts where there was rubbing on RWD models on the front left wheel.

I then realized that everyone that confirmed fitment was xdrive. I'm wondering if there's a difference in wheel clearances on the RWD models?

It would definitely be easier to exchange sizes if the tires haven't been mounted.

[G30M]

Originally Posted by PLF69

That's what I taught after posting but its not because your Xdrive it's because of your wheel tire package. My M340i is Xdrive and came with staggered 225/255 setup.

I've ran 245/40-19 for the track last summer and never rubbed. This season I am installing 255/40-19, that's on 19x8.5 ET30 wheels and I have 3mm spacers up front, fingers crossed it will clear..

just had a thought.

you do know that bigger tyres mean slower acceleration?

[Hybridizer]

Originally Posted by Mastamoe

Are you RWD or xdrive? I have a RWD model and am concerned about rubbing.


I just bought these tires and they are waiting to go on. I don't want to mount them if there will be rubbing. I did see a couple of accounts where there was rubbing on RWD models on the front left wheel.

I then realized that everyone that confirmed fitment was xdrive. I'm wondering if there's a difference in wheel clearances on the RWD models?

It would definitely be easier to exchange sizes if the tires haven't been mounted.

I am xdrive and have adaptive suspension. The other person who had pictures posted had some sort of defect or issue with the lower spring perch. I'm unaware of RWD vs AWD having an impact on it.

If people can run supra 3.0 wheels with are 9 in the front on a 245 tire and only have rub with adaptive suspension. You should be totally fine. To confirm, I am fine and love the setup.

As for lower acceleration performance post, maybe I'm just getting old. But my brain still gets squished on launches and I can 110% say the ride and comfort out of the car and performance on cornering was well worth the little bit lost on aceeleration.

TL;DR - You are correct. But I put an * next to that!

[Mastamoe]

Originally Posted by Hybridizer

I am xdrive and have adaptive suspension. The other person who had pictures posted had some sort of defect or issue with the lower spring perch. I'm unaware of RWD vs AWD having an impact on it.

If people can run supra 3.0 wheels with are 9 in the front on a 245 tire and only have rub with adaptive suspension. You should be totally fine. To confirm, I am fine and love the setup.

As for lower acceleration performance post, maybe I'm just getting old. But my brain still gets squished on launches and I can 110% say the ride and comfort out of the car and performance on cornering was well worth the little bit lost on aceeleration.

TL;DR - You are correct. But I put an * next to that!

I threw the tires on today and the front driver side did rub.

Any idea what size spacer will remedy the issue? I know 15mm all around looks great, but I fear that the wheel will stick out with 15mm spacers and 245/40/19s

[Sextus]

im a total noob and uneducated on tires. I have a 330i and wanted to replace the factory wheel with the widest with front and rear?

I know lots of guys keep their stock set up and run spacers. my question is, to avoid having to use spacers can't I just run wider wheels with wider tires?

my car is running the square 18" stock wheels.

[umaryasov]

I recently installed OEM M3 19x9.5 +20 826M square set up on my M340i with 275/30 PS4S.

The front fits perfectly and doesn't rub even at full lock. The rear sticks out a bit but I kinda like it.
I've only experienced minor rubbing on the rear right wheel after going over a highway bump at 80 miles an hour. I'm getting an alignment soon so I'll update and post pictures.

[1WickedE90]

Originally Posted by umaryasov

I recently installed OEM M3 19x9.5 +20 826M square set up on my M340i with 275/30 PS4S.

The front fits perfectly and doesn't rub even at full lock. The rear sticks out a bit but I kinda like it.
I've only experienced minor rubbing on the rear right wheel after going over a highway bump at 80 miles an hour. I'm getting an alignment soon so I'll update and post pictures.

Can you let us know where the rubbing is occurring (e.g. fender lip)?

[umaryasov]

Originally Posted by 1WickedE90

Can you let us know where the rubbing is occurring (e.g. fender lip)?

Yup, on the lip but only on the rear right side wheel. It's really minor and i've only been able to figure that out by physically checking under and pulling a tiny string of rubber

[TheJungatron]

Hey everyone, after reading everything still wondering.

245/4019 safe for square set up on stock height non-adaptive M340i RWD car?

TY!

[umaryasov]

Originally Posted by Jungatron

Hey everyone, after reading everything still wondering.

245/4019 safe for square set up on stock height non-adaptive M340i RWD car?

TY!

I'm running 275/30/19 with no rubbing but I'm cutting it really close at full lock. Your set up increases wheel and tire radius by 2.8mm but I think it should be fine. The only concern is when you turn your steering wheel full to either side.

[TheJungatron]

Originally Posted by umaryasov

I'm running 275/30/19 with no rubbing but I'm cutting it really close at full lock. Your set up increases wheel and tire radius by 2.8mm but I think it should be fine. The only concern is when you turn your steering wheel full to either side.

Thanks... I feel like I cant win on this platform. F30 was so much more cut and dry with tires ands wheels..

OEM it is for now I guess

[Insane435]

Originally Posted by FellowM3

Did you ever e d up installing 265s squared. Would love to see this and being squared will prolong tire life longer as I can swap rear and fronts

I did not.

I honestly think I am going to do 255s square and call it a day. I plan on getting the OEM Jet black 791m wheels but I will get 2 sets of the rear wheels so i can have 8.5" wheels all around. I am still trying to make sure this will fit but based on other setups, it looks to be fine. I am sure I will need a spacer though on the front.

[Obzdian]

Soooo.. to bring this one back a little.

Car: M340i RWD Std Suspension stock ride height.

I want to go with a squared setup... what would be the widest wheel/tire setup I could run?

255's 8.5" wheel ???

I want a flush look, no rubbing .. just a clean look and drive.

Gracias!! Lol

[Insane435]

Originally Posted by Obzdian

Soooo.. to bring this one back a little.

Car: M340i RWD Std Suspension stock ride height.

I want to go with a squared setup... what would be the widest wheel/tire setup I could run?

255's 8.5" wheel ???

I want a flush look, no rubbing .. just a clean look and drive.

Gracias!! Lol

https://support.apexraceparts.com/hc...-Fitment-Guide

Apex has a fitment guide.

Looks like you can do 19x9s squared. ET 28 up to 265s

[Obzdian]

Originally Posted by Insane435

https://support.apexraceparts.com/hc...-Fitment-Guide

Apex has a fitment guide.

Looks like you can do 19x9s squared. ET 28 up to 265s

Thanks!!

As soon as I posted this I found that thread. 😎

Working through it all now but this is the route I will be going.