Re "When I was at Bob Jackson's in the mid 70s I definately remember Danny [Foster] building a frame for Reg, I'm sure it was a road frame, but maybe it was a track frame?
Seems odd now that he would have had a frame made by Jacksons if he was embarking on his own project within the cycle trade?"
Reg's bike business was long finished by this time. Perhaps the bike that was asked to be built by Bob Jackson was a track bike for Reg's comeback when he won the British Pro Sprint Championship in 1974 at age 54.
Incidentally, in the video "Maestro" about Reg shot in 1984 or 1985, Reg is riding a Brian Rourke road bike.
Toronto, Ontario, Canada