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      09-09-2012, 08:45 PM   #67
deathray
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Drives: E60 M5, F10 M5, E70 X5M
Join Date: Mar 2012
Location: Edmonton

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Quote:
Originally Posted by bobblehead View Post
Make sure you have it test fitted before mounting the winter tires.

My Forgeline wheels came in from the States today and I went to have one front wheel test fitted ... guess what, the front brake caliper is too big and rubbing the wheel, even though I gave them the exact spec (offset & width) as the 345M wheel. Now, the wheel shop will have to contact Forgeline Monday to get them to remake another set or I will have to go back to the drawing board and winter time is fast approaching.

I have never encountered so much trouble buying a set of aftermarket wheels before. When I looked at Tirerack, everything is 20" and limited choices of winter tires available too.
That scares the crap out of me. Its just crazy that they dont fit when made to stock size! That must mean the clearance on the stock 19's was nearly non-existant. My winter tires are coming pre-mounted because it worked out way cheaper for me that way.

How bad was the rub; how much more clearance did it need? Did you measure the wheels to see if they were, in fact, made to the right spec? Have you by chance figured out the minimum brake clearance requirement (I think Im going to try to talk to the master tech at my shop and figure that out tomorrow)?

If they were machined right, the only thing I can think of off hand is the hub diameter. Are the forgeline's hub-centric? As far as I know the correct center bore for the F10 M5 is 72.56mm. My master tech told me that the car needs hub-centric wheels to be properly stable and Ive heard from other places that some cars that demand hub centric wheels dont always center correctly off of just the nuts. If that is the issue, you might be able to get a quick fix with some spacers.

Keep us posted, Ill have them do a trial fit on my set when they come in and let you know if it works (I think the ship date is Sept 19 so I should get them a week or so later).

Good Luck.