In 1968 and 1969 I used to go with other high school buddies to watch a boy from our neighborhood race what was called 'TT' at Brown Field near San Diego.Taken from Triumph Motorcycle Restoration Guide Bonneville & TR6 1956-1983 (Gaylin 1997). On page 127 it states
"The Bonneville TT Special was originally created for western U.S. off-road and steeplechase-style TT racing, hence its name."
I dont know if it's fact or fiction but it sure sounds like a good answer.
Nope, just Reginald and Peter - They were huge! Together they were about 650!! There wasn't anyone there named Harley, not in those days.looseparts, was it only british twins in TT events or were they racing against the locals?