nah, radial caps are asphalt belted rubber tires with closed cell cores. The dirt oval flubber is a mounted and trued rubber foam, trued to a desired size and shape then coated with contact cement or silicone then a thin soft rubber tire is placed over the foam tire. Kinda same principle ( very low expansion during high loads and wheel speeds ) but the caps were used to maintain traction on high speeds, the flubber was a way to get around the " no foams " rules at tracks when you came into town for a big race.EvolutionRevolution wrote:AKA "caps".Charlie don't surf wrote:Thin rubber "cap" wrapped over a foam tire, I have some old ones here somewhere- we used them at tracks that didn't allow foams. Rubber over foam equals flubbers
Here Is a really old and shot set