Any tips out there for keeping white walls clean? Just looking for some shortcuts on keeping the whitewalls on my Road King Classic white. Does anybody know of something that can be put on them to repel brake dust? My rear tire "dirties up" really quick. I'm thinking that the shop installed some pretty cheap pads. (Lesson learned) I wonder if I can pre-treat my white wall with something that would not only keep the brake dust from gathering, but also make it allot easier to clean. Any idea's?