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Hi, just want to know, if the car comes with stock M sport 19" wheel and run flat tyres, when I change it to non run flat, do I have to change the wheel as well? (I saw the thread talking about the special inner wheel structure used for run flat)
Furthermore, I saw some articles stating that the car is specially tuned, such as suspension, by BMW to use run flat tyres, is it safe or does changing from run flat to non run flat will affect the handling of the car? Or the suspension has to he re-tune?
Thanks a lot for any information.
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