Did anyone do this???

[XB08]

I want to take a same dirt bike and turn it into to a track bike / race bike of old.. I want to use a kaw 110cc.

[High_Side]

http://www.amra.ca
In the "Thunder" class, 4 stroke 125cc bikes compete on roadrace tires. All racing takes place on a go-cart track and it is extremely competitive. This sounds like the kind of thing that you were talking about. There should be some sort of club in your area.....

This is actually huge in Calgary where the first generation of kids who started early in the club are now turning in to Canada's top roadracers. Regular drop-ins by former Canadian Superbike champions make it that much more fun for the locals who compete. And, you can race an entire season on one set of tires!