I have an '86 VFR and it has white rims. With brake dust and chain grease being slung on the back one and two disks up front spewing dust they stay dirty. Can anyone reccomend to me a cleaner that will get this crap off of my rims? I can't even seem to scrub it off with the stuff I am using. I heard somebody say that there was some stuff you just spray on and hose it off. Anybody ever heard of that?