At that time we got into contact with Mr. Bob Trigg, one of NVT's engineers and one of the men behind the well-known Norton Commando "Isolastic" engine mounting system. All the following pictures are taken at the very "rural" grounds... of NVT in Andover, U.K.

More and more old pictures are found and here you see the first proposed NVT prototype frame for the "Isolastic" type Yamaha/NVT XS650. So the XS650 lovers can start to copy it ! Sorry guys, I do not have the measurements.... !

Yamaha XS650/NVT prototype frame