as i know the triumph trw was not fitted with a crashbar all the photos i have of the bike when i was in the army in the 1960s none of them have a crash bar the british government imported trw(dumped) on the canadians there is a chap who is the guru of trw in canada he can be contacted britishcycles supply co canada info@britishcycles.com maybe the canadians fitted them he might know roger they are 4 hrs behind us