They say on all year, don't see the point in taking them off but then it does not get taken out on the roads in the winter when there is salt on the roads The van has only just done over 11ooo miles in a little over two years. I can see why it happens the edges are too sharp so the lacquer can easily come off there. If they has broken the edges more I think they would have been ok. If I had realised that they would be like this I would have gone of the Black ones.Did you use your wheels all year round or take them off over the winter.