[eyespider]

Hi I planned to get a cheap set of alloys for winter so I could get my factory fit alloys refurbed over the winter.

I was thinking M Star-Spoke 400 - 18'' 36117845880
Is it ok to get 4x 8JX18 ET:34 and put 225/40/18's on them? (I've had dunlop winter sport in the past)
Its a F33 435d xdrive
regards

[alohasurftoad]

Originally Posted by eyespider

I was thinking M Star-Spoke 400 - 18'' 36117845880 Is it ok to get 4x 8JX18 ET:34 and put 225/40/18's on them? (I've had dunlop winter sport in the past)Its a F33 435d xdrive regards

OEM tire diameter is 26"...225/40/18 is 25.1" and it's smaller diameter and sidewall will cause speedo read to higher than actual, accrue more mileage than actual and further increase the unsightly x-drive wheel gap. if these shortcomings do not bother you post some pics after it's installed.

personally, i'd get 235/45/18 like this...
https://f30.bimmerpost.com/forums/sh...+235%2F45%2F18
and this
https://f30.bimmerpost.com/forums/sh...6&postcount=19

or 225/45/18, which is OEM F3/4 front or square tire size

[eyespider]

Originally Posted by alohasurftoad

or 225/45/18, which is OEM F3/4 front or square tire size

Hi thanks for replay

ideally I don't want any discrepancies on the speedo or odo,
so 225/45/18 or 235/45/18 will be fine for all four alloys?

As I'd like to be able to swap the fronts and backs periodically to even wear.
regards

[alohasurftoad]

Originally Posted by eyespider

ideally I don't want any discrepancies on the speedo or odo, so 225/45/18 or 235/45/18. will be fine for all four alloys? As I'd like to be able to swap the fronts and backs periodically to even wear.
regards

225/45/18 is the standard OEM tire size BMW installes on 18x8 ET34 400M square setup.

as shown in the links in my previous post. 235/45/18(26.3") fits better on 18x8, provides 10mm more tread width, comfy ride, impact protection and reduces some of the unsightly x-drive wheel gap, without any problems.

[eyespider]

Originally Posted by alohasurftoad

225/45/18 is the standard OEM tire size BMW installes on 18x8 ET34 400M square setup.

as shown in the links in my previous post. 235/45/18(26.3") fits better on 18x8, provides 10mm more tread width, comfy ride, impact protection and reduces some of the unsightly x-drive wheel gap, without any problems.

many thanks you've been very helpful
kind regards