Weather no good for riding? Want to kill a few minutes ?
Take a look at these videos.
They are about John Renwick - Vincent enthusiast extraordinaire.
First one is about his workshop, nice bit about his homemade Dyno about 7 mins in.
The second is more about his racing career, what an amazing man.
It's of interest to me because the first engine I had to rebuild was a Vincent 1000cc twin when I was about 23, 52 years ago. https://youtu.be/Zw6hhAmzXQs https://youtu.be/VHdT4bV-fCM
Hope you enjoy.