Long before the mountain bike entered our global consciousness, the cycling enthusiasts of Northern California's Marin County rode modified pre-WWII bicycles down the slopes of Mount Tamalpais. They developed their bikes through rigorous field-testing, often risking life and limb to do so. Some of these cyclists were Category-1 road racers looking for a new way to train during the off-season. Others were simply fun-loving hippies looking for a new way to commune with nature. Their early bikes were scavenged from dumpsters and junkyards. It w...
