Beautifully restored NSU 500 OS-T otherwise known as the Konsul II. This 500cc Konsul is a single cylinder 4-stroke machine with 21 HP. Another notable fact are the upside down front forks. The NSU factory was in Neckarsulm Germany. The first Konsuls came out in 1951 designed by Albert Roder. The 500cc Konsuls are rare. Here is a link to a video of the motorcycle running. SOLD.