On public lands all Off-Highway Vehicles (OHV) must stay on designated routes. They are not permitted on vegetated areas. SierraOutdoorRecreation.com maps show designated routes and individual favorite routes are listed under the three categories of recreational vehicles.
Motorcycles are two-wheeled motorized vehicles less than 40” wide.
4WDs and motorcycles displaying a proper highway license can generally be operated on 2WD roads. ATVs, due to their low heights and high speeds, are usually not permitted on general use Forest roads -- unless signed as permitted. When we indicate 4WD roads, these OHV routes can also accommodate motorbikes and ATVs unless signed otherwise. When in doubt, inquire locally.
All vehicles must have proper and working spark arrestors and noise reduction equipment. “Closed Course Competition” motorcycles usually don’t meet these requirements.
Motorized vehicle operators should always yield to other trail users.