We recently featured a short history of the Pearl Pass Tour, when Marin County riders from California met with their Crested Butte, Colorado, counterparts and the sport of mountain biking was truly born, in our print journal (What? You don’t subscribe? Fix that egregious error, here). In our research, we came across this gem of a video, from a San Francisco news show in the 1970s. In this recording, you meet Gary Fisher, Charlie Kelly, and other luminaries of the Marin mountain bike scene, as well as footage of the early “Repack” races in the Mount Tamalpais watershed. Denim. So much denim.