SF's Premier Mountain Bike Shop & Guide Service
Big Swingin' Cycles is the premier mountain bike guide service in NorCal. Based out of our full service pro shop for 20 years, we maintain a fleet of the best demo bikes, coupled with guides who know Bay Area riding like no one else. AND - we've just opened our new trailside clubhouse up in Marin to make your ride even more memorable. Our guides have First Aid, CPR, & Wilderness First Aid Training.