Quote:
Originally Posted by Bigtop
I have read all the threads here, but non of them give specific evidence that BMW designed the X5 E70 to run on only runflat tires and that if you put non runflat tires on it will be detrimental to the suspension and handling characteristics of the car.
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No evidence is given because there are non.
once the tire are inflated to the proper level there are not difference to the suspension. The only difference is that the RFTs are stiffer sidewalls which would generally give harsher ride.
This statement unclear and is interpretable in terms of what they mean by detrimental. It could mean when you get a flat tire, the non-RFT could damage the wheel or maybe the suspension (depend on condition of road and speed) but where as the RFT will somewhat maintain its sidewall structure the handling.