Bay city bike full day rental san fran intror r rent a bike and see san francisco on two wheels at your own pace with leisurely rides along the waterfront bay trail and over the golden gate bridge to off road trails where mountain biking beganr r bay city bike full day rental san fran full detailsr r the san francisco bicycling experience is second to none with plenty of dedicated bike trails leading all over the city and beyond just waiting to be exploredr r hopping onto a bike and gli