Bimmerfest - BMW Forums - View Single Post - Wheel offset for 550 GT
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Old 11-19-2012, 12:17 PM
jadnashuanh jadnashuanh is online now
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Join Date: Jun 2011
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Mein Auto: 535ix-drive GT; i3 BEV
Most wheels would have no problems with the max load...but, not all will fit, which I understand is the orginal question. IWO, two different wheels in the same size from two different manufacturers to fit a vehicle properly need everything to line up - the bolt pattern, the offsets, and the actual inner shaping (often determined by the machining) of the wheel so it can clear the calipers and any other suspension and frame components when turning or even straight ahead. Having the centerline of the wheel too far in or out from the design puts extra loads on the bearings, and if too far out, slings pebbles and other debris onto the car and those behind which can be quite expensive and dangerous.

I do not know what those numbers are, BMW probably won't tell you, and your best bet is to talk to the aftermarket supplier and see if they've confirmed it will fit.
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