There Were Many Types You Could Ride In The Yamaha Gold Gup, There Were Home-made Machines, Standard Stores Machines Such As Yamaha's, Stingrays, Kawasaki's etc. And Then You Had The Works/Prototype Stuff Such As DG, Dan Gurney Monoshock's, Yamaha Works (Scot Breithaupt Rode One) And Kawasaki Works.
Stu Thompson I'm Sure Rode One Of The Yamaha Motobikes But It Wasnt A Works, Just A Standard Store Machine