Does anyone have any experience carrying heavy loads with a Jansport external frame? They're made out of considerably smaller tubing than other externals, but have more horizontal bars as well. Also, the horizontals aren't welded into the verticals, just coupled with connecters. How quickly do these frames break under heavy use? Quicker than larger tubing frames? Where do they break? The bars or the joints?
I'm not asking if the suspension is comfortable, or for a recommendation on a better choice. Just concerned with longevity of the frame. Thanks.
