The major public land management agencies with significant holdings in San Diego County are listed below along with a brief description of their policies pertaining to trail access for bicycles. The comments below are intended to provide a general overview of bicycle related policies and are not intended to capture all the subtleties that may pertain to specific roads and trails. Trails and fire roads can be considered OPEN unless otherwise posted. Trails and fire roads can be considered OPEN unless otherwise posted. Unfortunately, there are very few miles of singletrack currently OPEN anywhere in the State Park system.
All cities have their own policies and regulations pertaining to bicycle use.
Check with the local municipal agency. These various agencies have their own policies and regulations pertaining to bicycle use. Check with the local agency before hitting the trail. Land officially designated as State or Federal Wilderness does NOT allow for the use of mechanized transport, including bicycles. More details are available by contacting the various land agencies or by speaking with park staff on the ground.