My 1st bike at 13 years old was a Honda s90 cut the pipe down turned it into a trail bike. One day my uncle which flat tracked Harleys, BSA, and triumphs in the 50's & 60's invited me to come along with he and some friends to ride the fire trails in the Santa Cruz mtns to the coast. Well, I was totally embarrassed when most of those guys were running Bultacos, CZs and the like. Needless to say I was the last guy to show up at the end.
I came back the next summer with a Husky 400 to play with! Had a stint racing rd350s and rd400s in the mid 70's with AFM against Steve Baker and Kenny Roberts on the track but never was able to pass them.
One thing I do remember well was my 2nd MC was a Honda 350 bought brand new ended up in the bottom pile of non Harley Davidson bikes at the Altamont/Rolling Stones concert by security (Hells Angels) behind the stage.