[Shaz25]

Okay I know someone selling these 18" Style 193M Wheels. Will they fit my 2013 328i xdrive? Because I been seeing them mostly on older models.

[John in VA]

If they're 8JX18 with offset of 34 they are the same size as the wheels that came on F30s.
http://bmwfans.info/parts-catalog/F3...browse/wheels/

[Tommi_Mav]

Fronts are 8Jx18 ET 34 and rears 8.5Jx18 ET37, so you're good to go.

But if they come with tires, since they come from E9X you must change them because the overall diameter is different than speced for F3X. E9X had 225/40/18 OEM tires while for F3X they must be 225/45/18.

[John in VA]

3.4% difference:
https://tire-calc.com/comparison/225...5-40-r18-inch/

[Shaz25]

@Tommi_Mav

Yeah so they come with tires. 225/40/R18 and 255/35/R18. 8.5jx18

[Tommi_Mav]

Originally Posted by Shaz25

@Tommi_Mav

Yeah so they come with tires. 225/40/R18 and 255/35/R18. 8.5jx18

Then as I said, you must put new tires on. If you go for wider rear tires than front (staggered setup), you must also take care you don't have more than 1% difference in diameter between front and rear tires, since it's an X-drive.

You can also go for a squared tire setup, since rear wheels are only 0.5" wider than front ones, but shouldn't rotate fronts with rears.

[Shaz25]

@Tommi_Mav

Yeah I think people were suggesting a squared setup, would you recommend the oem size all around then? 225/45/R18?

[Ennoch]

Different bolt size between the older and newer models too; older were M12 and newer M14.

[Tommi_Mav]

Originally Posted by Shaz25

@Tommi_Mav

Yeah I think people were suggesting a squared setup, would you recommend the oem size all around then? 225/45/R18?

If you're happy with that size, why not. You should consider also 235/45/18 as it's more to the middle ground from a fitment perspective for 8" and 8.5" wheels, since 225's is the minimum suggested size you can fit on a 8.5" wheel and will be a little bit stretched. Don't know about the differences in price though. Sometimes going up or down in one tire dimension (width or sidewall) has a big difference in tire price.

Of course I don't take into consideration any need for additional grip, due to tuning, increased power output, driving preferences etc. I guess it's just your DD.

Ennoch Thanks for the bolts info. I wasn't aware of that difference. Anyway, one should always use the original bolts that come with the car (M14). I guess there's no problem fitting them on the E9X wheels.

[Ennoch]

Tommi_Mav I don't know whether the bolts fit through the E90 series wheels or not unfortunately but I'm sure a google would provide the info. I had a quick look which anecdotally suggested people have done it, but no definitive answer on if you needed to enlarge the bolt holes on the E90 wheels. Most wheels have quite a bit of wriggle room on the bolt holes so I suspect you'll just be using a bit of that to fit the M14 bolts into the ostensibly M12 holes.

[dmanb2b]

Bolt size is not an issue, just re-use your stock f30 bolts

[alohasurftoad]

https://f30.bimmerpost.com/forums/sh....php?t=1713250
https://f30.bimmerpost.com/forums/sh...=705532&page=3

[dusan1080]

Is there any difference if I put all 4 tires 205/55/R16 on 320d xDrive instead stock size 205/60/R16 ?

[alohasurftoad]

Originally Posted by dusan1080

Is there any difference if I put all 4 tires 205/55/R16 on 320d xDrive instead stock size 205/60/R16 ?

205/60/16 = 25.7" diameter
205/55/16 = 24.9" diameter

205/55/16 will increase speedo error (higher than actual) by 3.2%, odometer will accrue more miles(than actual) by 3.2%, increase wheel gap 0.4" and ride lower 0.4". it's thinner sidewall provides less comfort and impact protection.

if the OEM rim width can support it, 215/60/16(26.2") would be a better size to use as it would have reverse effects of using a lower than OEM diameter tire. otherwise i would stay with stock oem size of 205/60/16...

you could also consider 225/55/16(25.7") same dia as oem size. it will bulge a bit on the stock rim width, though.
.