[CFF]

I currently have M3 LCAs in the front, and full adjustability of camber and toe in the rear, now I know the front should clear since I am running 18x8.5 ET35 right now, what about the rear ?

My current set up for the rear is -2.3 camber with 18x9.5 on coilovers with 265/40/18


Thanx in advance!!

[FakeM2]

A little off topic but what size tires are you running up front?

[CFF]

225/45/18

[CFF]

https://www.flickr.com/photos/36296510@N00/35444108242/

[CFF]

No ONE?????

[MrEnthusiast88]

CFF what is your current offset in the rear? Nice pictures btw

[CFF]

Currently running 18x9.5 ET45

[m3driver999]

Not sure, but your 265 40 17 has 20.5 mm more sidewall height than stock..and with your ET35 18x9 it would sit 10mm further out than current ET45..and if it is lowered maybe more difficult.. stock is ET58

..also tire..square shoulder?

I am running 17 x 9.5 et35 with 235 40 17..but the RS-RR runs wide...and that has not much margin for poke..

One plus is that when mounted on 9" vs 9.5 you will loose some effective width...but maybe not enough to counter the 10mm further poke..

[CFF]

m3driver999

265/40/18 is just for testing purposes, I am running it for the time being.

would 255/40/18 be better for the 18X9 ET35?

btw the rear camber sits at -2.3

[m3driver999]

Originally Posted by CFF

m3driver999

265/40/18 is just for testing purposes, I am running it for the time being.

would 255/40/18 be better for the 18X9 ET35?

btw the rear camber sits at -2.3

Are you planning any higher performance, or stance?
The 35ET in the rear increased the rear track, while front track stayed same, so handling decreased, more understeer, I found, and also was using 235 rear - ie no traction..!

The 255/40 better matches the 225 45 front tire diameter, almost positive on that.

Also the 265/40 has a more sidewall , looks 'meaty', but more sidewall flex

With coilovers and lowered the 265 40 rubs? or ok? probably has some poke.. if no, then 255 should be even better for no rub. (not sure how much help w/ -2.3camber but should be of help) (255 for sure better than 265 for fitment..less width..less sidewall ht)

235/40f 265/35 rear are good sizes diameter wise,
(not sure 255 40 18 is common? 255 35 more common)

Me currently, 235 40 18 fr 255 35 18 x 9.5 et 58 rear...though going for grip and handling...may go 265 35 18 et 58 for more rear traction..

...also 255 w 9" rim...probably better match to rim...tire bead to rim width fitment

...stance wise..looks...very dependent on rim, ride ht, sidewall proportions..etc.

[Anthony235]

Originally Posted by CFF

I currently have M3 LCAs in the front, and full adjustability of camber and toe in the rear, now I know the front should clear since I am running 18x8.5 ET35 right now, what about the rear ?

My current set up for the rear is -2.3 camber with 18x9.5 on coilovers with 265/40/18


Thanx in advance!!

Should fit.

Originally Posted by CFF

m3driver999

265/40/18 is just for testing purposes, I am running it for the time being.

would 255/40/18 be better for the 18X9 ET35?

btw the rear camber sits at -2.3

255/35/18 would be better.

[Anthony235]

Originally Posted by m3driver999

The 35ET in the rear increased the rear track, while front track stayed same, so handling decreased, more understeer,
.

Not more understeer. Not a decrease in handling.

Increased stability in the rear is all.

[Lew Carrum]

Just tried my old z4 wheels and tyres on my 240. Fronts 225/40-18 et35 no problem. Rears 255/40-18 et35 rubbing straight away only drove 10 yards did not fit. Standard wheels going back on tomorrow.

[Bee Pee]

Lee

What width offset are the ex z4 rear wheels ?

Rear tire (255/40/18) is too tall -255/35/18 might work better

[Lew Carrum]

Originally Posted by Bee Pee

Lee

What width offset are the ex z4 rear wheels ?

Rear tire (255/40/18) is too tall -255/35/18 might work better

They are 18x8.5" and et35 offset, I have put them up for sale now, I need wheels that are at least et45 on this car. Thanks.

[Zell_F22]

Originally Posted by CFF

I currently have M3 LCAs in the front, and full adjustability of camber and toe in the rear, now I know the front should clear since I am running 18x8.5 ET35 right now, what about the rear ?

My current set up for the rear is -2.3 camber with 18x9.5 on coilovers with 265/40/18


Thanx in advance!!

Any pics?