I wonder if anyone has found a smaller 'secure' top box than the BMW Vario for the 2013 GS?. I looked at one the other day and find it larger than the one for the 2010 GS, heavier, expensive and in excess of my needs.
Basically want one for overflow when touring with panniers or to avoid riding with a backpack to include a few necessities - tools, puncture kit, cable etc.