South Of England Classic Bike Show July 2026 watch the exbert at work on his Honda CB750 Four K4 1974 that was for sale for £4,500 but didn’t sell this is the person who told me about the Exhaust pipes if they only have HM300 stamped on them they are reproduced pattern ones as he said they have to have CB750 HM300 stamped on them to be genuine Honda pipes and said you are looking at £3,000 for genuine set of Honda pipes he had a nice CB450 that was all original watch YouTube video below
https://youtu.be/GGZ8mLz0LFA?si=dUm8RMiyx7XwWwkj
