http://www.youtube.com/watch?v=h19n-5qIp78

The 60's didn't bring just drugs, sex and rock n' roll, but the beginning of mountain biking. I'm sure they all went hand in hand though. No matter what type of mountain biking you do, it all started here: just a bunch of dudes, on a mountain, messing about and trying to go faster than their mates. And that's as fitting as it gets, because riding should be all about having a good time on your bike with friends.