This 1937 California Highway Patrol-badged period Knucklehead looks like it just needs a rear-mounted siren, mesh or whip antenna, two-way radio speaker at the handlebars, dual headlights and red and blue flashers for it to be ready to head out on patrol again somewhere on the 405. (Calling Officers Poncherello and Baker!) This black and white CHP bike is a second-year Knucklehead, bikes that closely resembled the inaugural EL models of 1936. This bike was last sold in 1994. This 1937 harley-Davidson EL is fitted with the 61 CI 45-degree OHV V-twin and is an original California Highway Patrol bike that has been restored to like-original condition, and it is being sold with a title