Originally raced as Oscar Saville, but climbed off in ToB I think and took over commentating, hence into media etc. He did a lot for the Rayner Fund, and supported all their events. He didn't lose touch with the Yorkshire racing men once he was famous at all, always up for a chat.
A friend of mine who knew him well tells a tale of how he turned up somewhere in a brand new Rolls. "Wow" goes my friend - "never mind the car, look at this" says Jimmy, taking a new Raleigh Ilkeston road bike out of the boot.