Harley-Davidson JD was Harley’s first production 1909. Harley Davidson was replaced by dark gray as standard colors, and Sager-cushion front of the front wheel fork allowed a small amount of travel that has been used. Harley-Davidson JD first motorcycle forks parts of the motorcycle. Harley-Davidson bikes all parts available and services very best. Motorcycle cylinder was the same size as those used for the single and the replacement of the Good. Harley-Davidson JD is very old production.