Hi Desburnett,thanks,you were correct.I have another strange question.When the swing arm is in the horizontal position,there is a distance of 3 mm on the left hand side,when it is raised to the max(although it would never ever get so high )the right hand side touches the lefthand frame,even accounting for the 1959 non prescison workshop metalwork,this means either the frame or swing arm is a little bent,(the swing arm cross over tube has no play it it).should I be concerned ??