Seller notes

This the rear sprocket and coupling hub off a 1974 Kawasaki H1 (H1E) Mach III 500 cc two-stroke three-cylinder motorcycle. These are fairy hard to come by. I believe Kawasaki only produced this bike between 1969 and 1975. According to the neck tag, the bike this came off of was built in July, 1973. Everything is in great shape. No noticeable wear on the sprocket, bearing appears to be in good working order, and the rubber is still supple. This bike was the 500 cc version of Kawasaki's notorious ...

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