OK I clarify my statement a bit, and that was a s a jumnior back in the early 70's I believe Jeff liesk won a mini bike world championship. The event I believe was held in the states, but I could be wrong. it doesn't mean:
It was a US sactioned championship or an FIM event. just adding to the thread, lets not lambast the career of Jeff Liesk!!
Q. is the ISDE a world championship, which i don't think we could call it that, but we did win the Youth camiponship in that i think in 1985