|
Something like that has already been stated. Probably more significant is that, low profiles make for stiffer tyres, and run flats make for virtually solid tyres without give of any sort.
If anyone goes into a large pothole, at speed, they will damage their wheel and/or suspension regardless of make and this often shows obvious impact damage.
But because of the stiffness of the low profile run flats, they actually appear to transfer so much shock to these wheels (not even pothole shock but just the roughness of our roads) that, over time, the wheels crack on the inside of the outer rim and, quite possibly because of the negative camber on the rear, affects mainly rear wheels and not front wheels and yet the wheels have no obvious external signs of impact damage.
These cracks also happen to 18" rims as well and, more rarely, to 17".
Strangely, Alpinas and "M" cars on 19" wheels don't appear to have the same problems but, tellingly, they don't use run-flats.
|