I stumbled across this web page from a guy that made a tire cleaner from a
toothbrush head. The unique part was the mounting. His bandsaw is the same
as mine, a Grizzly 555 (looking at the photos anyway) so I am going to try
this. I am sharing this with the group in case the idea can work in your
case.

http://lumberjocks.com/projects/19465

His concerns about the Rocker tire cleaner are the same as I read on their
website. Of course, I welcome other ideas too. Namely, do you think the
bristles on a toothbrush will have enough strength to clean the tire?

Dick