Motorcycles for Sale Here are the current Harley Davidson Knucklehead listings 1939 Harley-Davidson Other Sidecar $67,500.00 1947 Harley-Davidson Other $58,500.00 1947 Harley-Davidson Other $16,000.00 1937 Harley-Davidson Knucklehead FL $5,900.00 1941 Harley-Davidson Knucklehead FL $65,000.0012345678910