Bike was a Bracebridge racing development 1952-54. Joe Craig didn't invent the engine though - he was inspired by the Gilera 500 Quattro Cilindri DOHC four which was raced from 1948 on and completely dominated race tracks in the early 50's, and the french contender Nougier 500 cc DOHC four, developed 1952-53 . Some claim the engine portrayed in the video is a Nougier engine purchased and slightly modified by Joe Craig, i.e., not a Bracebridge Str. development at all. Sammy's enthusiasm may not be entirely justified !
- Knut