Run flats can be extremely difficult to mount/dismount, especially if they have a smaller sidewall. In some cases, a special tire mounting machine is needed to help.
Pat - Here is a sample of what OEM BMW wheels cost;
Light alloy rim. 8JX19 ET:37 - $548.25
Light alloy rim. 9JX19 ET:39 - $587.57
Or you could just order a full set, with all hardware necessary;
RDC Complete alloy wheel set summer. BMW PERFORMANCE - $4398.94
Couple hundred bucks, huh?
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