I was re-storing a SL70 Honda some time ago and was in need of some forks tubes. I searched EVERY where with no luck. I even called Randy Marbles who specializes in the older mini bikes and he said they were not available. To my surprise while searching for other vintage parts, I came across a company called Old School Vintage Parts from New Hampshire. They actually had those fork tubes re-made and in stock!! They also had alot of CB750 stuff along with Z1/KZ stuff. I thought I would pass along this info for some one else in need.