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      10-09-2012, 10:01 PM   #1
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Stock springs in M3 with 18" wheels vs 19"

Are the springs that go into an M3 with 18 wheels the same as the 19? If not, how is the extra inch compensated for in the model with bigger wheels? Does the M3 with 19" wheels sit an inch taller?
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      10-09-2012, 10:31 PM   #2
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bigger wheels=thinner tires???
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      10-10-2012, 01:59 AM   #3
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the rims run different profiles. Aka the height of a tire. so if you re looking at tire sizes you will see: 265/35/19. The 265 refers to the width of the tire, the 35 refers to profile, and the 19 refers to inches of the rim. The 19 inch wheels have lower profiles. Therefor, they are close in size but the 18 inch has extra tire instead of the extra inch of rim. Let me know if you have any other questions. I was like you when I first joined this forum. Search around and you will learn A LOT!
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      10-10-2012, 04:51 AM   #4
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There is really no reason to bash someone for asking a question, ^Good reply^ To piggy back on that, the 35 number is called an aspect ratio, it's a ratio of the 265 number, which is the width in mm i believe, correct me if i'm wrong on this one. You can google tire size to get a good understanding of the concept. It will come in very handy when choosing wheel/tire sizes also another good topic to look into is wheel offset
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      10-10-2012, 11:32 AM   #5

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It's a valid question. The REAL short answer is, you're going to get F'ING ripped off buying tires for a 19" wheel as opposed to an 18" for F sake!! Stupid 19" wheels. Not only that but performance wise, if you're looking for improved performance, a lighter weight (18") wheel would be better along with a bit more rubber on the wheel rather than just a condom thin rubber wrap for crying out loud. Something tells me 19 & 20 inch wheels aren't being used by professional motor sport race teams. I could be wrong. Nascar's doing it with like a 15" or something. Lotta rubber there... haven't heard complaints.

I don't know when donk became all the rage for "performance" cars but it is interesting to say the least.

To answer your question, it's not about the wheels. It's about the tires on them. Personally, I like the look of a little more tire anyway under there.

To everyone else that lent there opinion of not buying an M3? Really?:

Thank for your technical input.
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      10-10-2012, 11:44 AM   #6
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Wow, people need to stop becoming hot headed and answer this guy's question in a respectful manner.

To answer your question a suspension that has 18s or 19s non-ZCP has the same suspension. I hope that helped.
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