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      04-29-2014, 08:22 PM   #1
v-rodder
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Question about 18" front and 19" rear on a Z4

Nvm... Just got a great deal on a set of 189's. Couldn't pass it up.

Last edited by v-rodder; 05-02-2014 at 09:16 AM..
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      04-29-2014, 08:32 PM   #2
dekaliber
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Well, the front and rear are going to have different circumferences, with the front being smaller than stock by about 1" in diameter (so 3ish inches circumference). Not sure if this will actually be the case but it's possible that the DSC might take issue with the fronts always spinning faster than the rears.

At the very least I'd make sure the sizes are about same by going 245/40R18 in the front, which should fit easily on a 8.5" wide wheel (that's what I have).

Any particular reason you don't want 18"s in the back (or 19"s in the front)?
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      04-29-2014, 08:39 PM   #3
v-rodder
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Just thought it would give the car a more hot rod look. The sizing is purely cosmetic. I chose the tire sizes because the side wall is the same height so each wheel/tire will look correct with the other. I come from the harley world, and we just have to mess with stuff. It's a curse.

Jim
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