I have not tried this Harley-Davidson product, so I can not speak to it's qualities or pit falls.
If it works, it has been a long time coming. I would have thought that some of the smart guys out there would have developed something 50 years ago.
If anyone gets there hands on this stuff, a report back to the board would be well appreciated.
"Harley-Davidson has rolled out a new boot mark remover that helps remove rubber marks and road tar from exhausts and other surfaces. Simply apply the gel directly on affected area, wipe away (when the surface is cool), and rinse. The cleaner also removes asphalt resin, bugs, and melted plastic bags."