The venerable Mr. Hopper is reputed to be a colleague of Lord Spagthorpe. Spagthorpe lent his name to the renowned Spagthorpe Whippet Motorcycle. This unfortunately is where my personal knowledge of Mr. Hopper and his Convincible Vampire ends. I have never personally seen either a Convincible Vampire or the celebrated Whippet.
On a different note, I have come across a 54cm Raleigh Professional (fastback seatstays) Carleton and was wondering just what sort of fitments would be appropriate. I assume Brooks, TTT, Campag but what else would have graced this nicely built machine?
Al Knoll
Sacramento, California