Originally Posted by chas58

Interesting.
My external frame pack carries the weight way too high for how I ride (relatively aero). I guess it could work if you are more upright. Big bonus is that their is air circulation so you won't sweat that much (not that this is a concern this time of year, lol).

I use a messenger bag (with front cross strap) to keep my weight down low (on my pelvis) and eliminate the sweat issue.