I would have loved to have that ten years ago when I was racing . Hell I'd like to have it now just in case mable ever come out of "retire"ment , just cant justify spending $$ on a sitting bike
I sent Sean a picture of mine and he passed on the info that he too had one and the bead is machined to accept the slick commonly used on a volkswagen which by the way can be made to scream down the quarter mile.
Rubber on mine is a GOODYEAR brand.
One cool thing is that the sidewall is so tall, its like having and 18 inch wheel !