This product is a vintage transmission gear designed for Harley-Davidson Sportster Ironhead motorcycles from the 1970s. Made of aluminum and steel, this gear is a genuine Harley-Davidson part with a unique design specific to these classic street motorcycles. Perfect for riders looking to replace worn-out or damaged transmission parts on their vintage Harley-Davidson machine, this item is a genuine part from the United States that is sure to enhance the performance and authenticity of the bike. This is most  parts for an  Ironhead transmission. Please check all photos. Probably not assembled correctly. Please email any questions. Thanks for looking.