The product is a vintage camshaft gear designed specifically for a 1980 Yamaha XT500 dual sport motorcycle. Made by Yamaha, this camshaft gear is an original equipment manufacturer part with the part number 583-12171-01-00. It is compatible with the XT500 model from the year 1980 and is an essential component for maintaining the proper timing and performance of the motorcycle's engine. This camshaft gear is a reliable and authentic part for restoring or upgrading a classic Yamaha XT500 motorcycle.