mountain bike, all-terrain bike, off-roader
['golfcart, golf cart', 'bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis', 'jersey, T-shirt, tee shirt', 'radio, wireless', 'breakwater, groin, groyne, mole, bulwark, seawall, jetty', 'sandbar, sand bar', 'mask']