I got some info concerning o-rings for the fork top plugs. It took me some time trying out a bunch of different sizes before finding a nice fit, the OEM o-ring comes straight from Italy but IMO does not provide a nice fit. It is almost unecessary because it is so sloppy. For some reason it might have been intended by Guzzi engineers, but to me it does not make sense. So I found some good alternative o-rings in metric sizes, they can be found at Advance Auto Parts or McMaster Carr.
