Not sure why it is described as a three wheeler since there are actually 4 wheels, the front two are close together. I have recently seen photos of a a group of factory sponsored racing Beavers. Pics are from 1970. I own a 200cc Beaver that was a factory demonstrator. It has carpet and floormats. No turn signals though. I don't think I have ever had it in fourth gear and held the throttle wide open to see how fast it will go on 50 year old tires. It is pretty stable though and less "twitchy" at speed than the Penguins.
I’m swapping a GY6 150 longshaft into my penguin for now because I’ve taken the villiers to multiple “experts” over the past 6 years or so. If anyone knows how to build these 197cc Norton villiers engines, let me know. 94O 2O6 3I96