David S. Wallens
David S. Wallens Editorial Director
6/11/20 8:26 a.m.
feature_image

Why are we wheel shopping? Because it’s fun. (Come on, admit it.)

A more practical reason: We wanted to move to a fully square setup on our 2004 BMW M3. Although we were running the same tire sizes at all four corners, different wheel offsets prevented us from rotating front to back.

How do you run the same exact wheel …

Read the rest of the story

dean1484
dean1484 GRM+ Memberand MegaDork
6/11/20 8:40 a.m.

I don't know anything about BMWs but could you have used a set of spacers to Rotate the stock wheels?  

Olemiss540
Olemiss540 Reader
6/11/20 9:34 a.m.
dean1484 said:

I don't know anything about BMWs but could you have used a set of spacers to Rotate the stock wheels?  

Stock wheels are staggered.

wspohn
wspohn Dork
6/11/20 11:33 a.m.

How many miles do you expect to put on this thing?  Tires may well age out before they wear out anyway.

If you run directional tires you aren't going to be able to rotate side to side much less front to back anyway.

codrus (Forum Supporter)
codrus (Forum Supporter) GRM+ Memberand UberDork
6/11/20 11:47 a.m.

I've got 18x10+25s on all four corners of mine without spacers, but it's a full track car (cage, etc) with lots of camber.

 

David S. Wallens
David S. Wallens Editorial Director
6/11/20 12:04 p.m.

In reply to codrus (Forum Supporter) :

Yeah, with more camber, we would have had more clearance. Did you have to roll your fender lips? And what size tire are you running?

David S. Wallens
David S. Wallens Editorial Director
6/11/20 12:06 p.m.

In reply to wspohn :

Good question on how many miles. Mainly looking to maximize tire life considering some track events.

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
6/11/20 12:12 p.m.

One of the things to do on the E39 M5 is put a set of rear wheels on the front. I think you need a 3mm spacer. Cuts down on understeer, looks badass and lets you rotate tires. Also, it looks badass. 

Of course, there are repros of the front wheels but the only source for rear wheels is take-offs and salvage. They're stupid expensive, it's cheaper to buy a new set of 4 aftermarket wheels in the same size than a banged-up pair of OE rears.

Slippery (Forum Supporter)
Slippery (Forum Supporter) GRM+ Memberand UltraDork
6/11/20 12:23 p.m.

In reply to Keith Tanner :

That's what I run on my e46 M3, four rears. I have 10mm spacers in the back, but none are needed. 

The main problem is that the factory wheels are HEAVY. I have a different set of wheels for track work so I dont mind the weight. 

codrus (Forum Supporter)
codrus (Forum Supporter) GRM+ Memberand UberDork
6/11/20 12:29 p.m.
David S. Wallens said:

In reply to codrus (Forum Supporter) :

Yeah, with more camber, we would have had more clearance. Did you have to roll your fender lips? And what size tire are you running?

The fender lips are rolled, yes.  I have 275/35R18 NT01s on it.

ZOO (Forum Supporter)
ZOO (Forum Supporter) GRM+ Memberand UltraDork
6/13/20 7:31 a.m.

In reply to Slippery (Forum Supporter) :

I ran a square set of the OEMs, too.  I didn't ever go wider than a 255/35/18.  Then I went to Apex ARC-8s . . .

I currently run a square set on the M2, as well,  It simplifies track day costs to be able to rotate tires as needed.

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