Preclean with Gunk Engine Brite (do not leave on too long), rinse wheels and tires off then a small bit of Palmolive green dishwashing soap and long bristle brush. Whitewalls get the Wesley's Bleach White, and use raised white letter pen to touch up scuffs...! Spoke whees, lots of elbow grease, wax and plenty of white cotton tees...way too much trouble, so I am glad I have cast wheels with tubeless tires without white sidewalls now on my Sporty! Sorry...:s