I have a related question:
When I remove stock mirrors to replace then with bar end mirrors, where/how I attach clutch/brake reservoirs to? The original screws to long to hold them in place.
2014 Monster 1200S
I replaced the stock mirrors with rizoma bar ends on my 1200 and had a similar issue. The plastic retainers that came with the mirrors fit the threaded holes, had to cut them in half to make them fit and they look very clean. But.... they hold the clutch and brake fluid reservoirs and since there is no proper way to tighten them, only by pushing them to the bottom, the deposits became a little wobbly.
So I took them out and used some of the remaining spacers that came with the mirrors and a bushing to compensate for the long screws that hold the stock mirrors and paint them black. I doesn't look as nice but the reservoirs are rock solid now. I might look for shorter right and left thread screws when I get a chance, but for now it will do.
I dont have a closer picture but look for the stubby things holding the reservoirs.