I have owned this bike for 11 years and have had it on static display ever since. I purchased it from a guy in Belgium that had access to NOS parts when the old cz factory sold. It is almost completely original. the rear hub is a later model as the 65's had rivets holding on the rear sprocket and this has bolts. Not sure if that was just on U. S. models or not. Also the seat has skirts and the 65's did not. However the seat is an original and I do have a picture of Roger DeCoster riding what appears to be a 65 Twin pipe with the skirts on his bike. The bike is a ground up restoratiion including the engine and is of museum quality.