
the writing on the side says ' not eccentric just slightly off center.'
You might find this website interesting:Dave Weller wrote:I remember fitting dustbin fairings in the 60's, what a head scratching problem, trying to get a good strong bracket above the front wheel to hold the considerable weight of the fibreglass shell, and getting good clearance for steering lock at the wheel and handlebars. Having got it fitted, the whole lot would vibrate and bounce around like crazy, so I would would be interested to see how he fixed it. The last one we put on, was on a Royal Enfield Bullet, but a bracket broke descending a hill and the bike got written off.