[JackDesmarais]

Hey everyone, I just have a quick question. Does anyone know what size tires I would want to buy for these rims? I bought staggered 19 inch rims (front 8.5x19) (back 9.5x19) . I drive a 2011 bmw 328xi

[dakine_surf]

What is the offset front and back for those wheels?... that will help determine the size of tire you are looking for.

Also is the suspension stock?

[MightyMouseTech]

Read this.

https://support.apexraceparts.com/hc...bile_site=true

You have to really careful with tire sizes on an XDrive.

[jwalker87]

Essentially, what you want to do is find a tire size calculator online (google it, there are dozens at least). Put in the stock tire sizes and see what tire sizes might work with your new wheels to end up around the same overall diameter, sometimes represented in % speedometer error. Play around with the widths and sidewall ratios as well as look at what sizes your favorite tires are offered in. Those tires should list acceptable wheel widths for that application.

I have 9.5x19" rear wheels on my 2008 335i, and 275/30-19 works well for me. For the front, you're probably looking at something like a 255/30-19 or 245/30-19.

[RealJ22]

Originally Posted by jwalker87

Essentially, what you want to do is find a tire size calculator online (google it, there are dozens at least). Put in the stock tire sizes and see what tire sizes might work with your new wheels to end up around the same overall diameter, sometimes represented in % speedometer error. Play around with the widths and sidewall ratios as well as look at what sizes your favorite tires are offered in. Those tires should list acceptable wheel widths for that application.

I have 9.5x19" rear wheels on my 2008 335i, and 275/30-19 works well for me. For the front, you're probably looking at something like a 255/30-19 or 245/30-19.

That wide for the front? My coupe can barely do a 235/35/19.

Like he said, you need a calculator to make sure the rolling diameters are within 1%

I believe a 235/35/19 and 275/30/19 are the exact same height and rolling diameter.

[jwalker87]

Originally Posted by RealJ22

That wide for the front? My coupe can barely do a 235/35/19.

Like he said, you need a calculator to make sure the rolling diameters are within 1%

I believe a 235/35/19 and 275/30/19 are the exact same height and rolling diameter.

235/35-19 is probably the way to go then. I have 9" front wheels so it's a little different from the OP. At least for the Michelin Pilot Super Sports, they list an acceptable rim width of 8-9.5" for the 235/35-19 as well as the 245/35-19, so that seems well-suited.

[Serf27]

“xDrive must use 235/40-18 front and 265/35-18 rear tires.
xDrive LCI sedan and wagon must use 225/40-18 front and 255/35-18 rear “

I am running lci xdrive setup on a pre lci xdrive
(225/40/18-255/35/18)

Am I going to run into trouble?