The Owyhee Motorcycle Club kicks it into high gear with vintage races The Owyhee Motorcycle Club is historic, the OMC has operated in the same spot in the foothills north of Boise for more than eight decades. and last updated 2021-04-18 16:26:04-04 BOISE, Idaho â The Owyhee Motorcycle Club is historic, the OMC has operated in the same spot in the foothills north of Boise for more than eight decades. This weekend the motocross club held one of their most popular events, the vintage races where people showed up in classic bikes to race around the track. It's one of the only places in Idaho...