Not Norton ,many Norton connections

Was going to post this link on the Challenge thread but thought it a little off topic. Norton should have looked into history, two cylinders from a car engine had been done before. Now, the Norton links. The Imp engine was designed by Leo Kuzmicki, fascinating story there, Colin Lyster patented disc brakes and sold out to AP Lockheed, also picture of an Atlas engine in a Lyster frame with disc brakes well before Norton used them. I actually raced a Norton 500 twin in the IOM Manx GP in 1973 with a Lyster disc brake after my Munch brake developed cracks.
Rara Avis: the Unique Lynton Racer | The Vintagent

Cool stuff

If I had never raced with a drum front brake, I would have raced right through the 80s and 90s. Fitting a decent disc front end in place of a drum brake is like adding 10 BHP. You can only go as fast as you can stop. That engine with the DOHC head and the Imp cylinders would have been a bastard. The theory is often different to the practice. Controlled engine braking is as important as smooth power delivery on a race bike. You can fantasise about that engine, but what we have in the Commando is very good. The gearbox stinks..

I've heard the name Lyster, never really knew what it was all about.
Thanks for posting..