Norton Commando - 900cc Trisolastic Prototype (1975/76)
In the mid-seventies the Norton Commando was coming to the end of its long and honourable life, and one of the ideas for a replacement was to fit a Triumph Trident 3 cylinder engine into a Commando frame. The engine was stretched to 900cc and the machine was constructed at the Kitts Green workshop. As a works prototype it had some raw edges where standard parts had been quickly modified, and even the front forks were a hybrid consisting of Norton tops with Triumph sliders. It went well, and had good roadholding but as with other experimental machines it passed into private hands when the Shenstone works had a clear out in 1978.
Another promising idea which never came to fruition due to the troubles which had by now beset the Norton Villiers Triumph Group.
The name derives from the marriage of a Trident engine with a Norton Isolastic frame.
Text from National Motorcycle Museum