David,
The wear potential is my consern as well. Here is the website.
http://www.innovativebalancing.com/index.html While I could not find any
reference to wear on the tire in the FAQ's I did go to the testimonial page.
Scroll all the way down. There is a pic of the beads after 30K miles. They
are clean with no rubber apparent. They note that they did NOT clean them.
Scott