Backpack with hydration system

The KlickFix adapter is mounted on the handlebars and remains there when the bag is detached. It is compatible with many bags from different manufacturers, the most popular being the waterproof Ortlieb bags, available in a variety of sizes. This is a very stable system for carrying unsupported weight on the handlebars, and it worked for me with light loads:compact bicycle handlebar bag I felt zero movement. However, when I added my DSLR camera (between 2 and 3lb with lens), I found that I had poor control of the steering. I reported this to the bag's owner, who confirmed that she does not carry that much weight in a handlebar bag on this or on any of her other roadbikes; she uses this system to store lightweight items only. 

Of course, it is not clear whether having the weight lower and supported by a rear rack would make any difference on the specific bike I rode. Anecdotal evidence suggests that it very well could. On the other hand, I have seen touring bikes with large, heavily laden bags attached to the bars using this same method, ridden successfully.pannier picnic bag So the bike does play a role, as, no doubt, does rider sensitivity to high/ unsupported loads.