41st Annual Mt. Diablo Challenge

This iconic 11.2 mi. ride climbs 3,249 ft. to the summit of beautiful Mt. Diablo. The road is closed to cars during the event. All ages, skill levels, bike types, and teams are welcome. Prizes awarded to King and Queen of the Mountain and for age groups winners. Individual times given. Net proceeds benefit bike safety and conservation on Mount Diablo. Registration includes BBQ lunch, snacks, prizes, and more.