Just thought I would share some photos of a Rob North triple that I had years ago. I was working at Dresda Autos at the time, must have been 1974/75, and bought a rolling chassis from a friend of ours who had started building it in his bedroom. It was said to be a chassis made for the factory’s racing team the following year but they stopped racing, so was sold off. If I remember right it was a BSA frame, but as I had got hold of a Trident engine, that’s what I fitted. I can’t remember what I had to do to get the Triumph engine in, whether it was just different front plates or some welding was involved, but I’m pretty sure it was a BSA/Triumph amalgam as I seem to remember painting it the red colour to go with the BSA side of it.
The engine was around 900cc. The crank was stroked, welded up and remachined by some sidecar guy in the north-west, if I remember right, then dynamically balanced on a Repco machine (as of Repco Brabham). I think the barrel was by Morgo, but I may be wrong as I’d also built up a 800cc twin with a Norton crank and Morgo barrel.
I don’t think I ever actually raced it; I entered club races but I don’t think I ever actually ran it because it took longer to get the engine completed than I expected and you had to enter the popular Bemsee meetings way in advance.
When Richard Peckett and I started P&M I sold the bike (to raise some cash) to a Tommy Stitt in N Ireland who road raced it. I’m sure it must still be around somewhere.

