Originally Posted by
arctos
I have such a device made almost 30 years ago by Robert Beckman Designs. It is a padded sheet with shoulder straps on one side and buckles and straps to attach two panniers horizontally one above the other. It is actually very comfortable and light at 12oz. but only handles two panniers which works for me as I only use two. I do not know if this item is still available.
Other options include the
Luxury Lite Stack Pack and the
ULA Epic .
That's most likely the most practicable way to go. Any rigid metal-framed, non-folding,or collapsible pack frame is just too long to easily carry on my bike racks. I'm going to ask someone with a machine capable of sewing canvas to sew double parallel lines across doubled canvas about 5" apart to accommodate aluminum rods, and two not quite parallel perpendicular lined 'tubes' (wider apart at the bottom) for larger aluminum rods which the pack straps will attach to. There will be many cut-outs to allow tying straps to be secured to the parallel rods. With the two perpendicular rods removed, the whole set-up can be rolled up similar to a sleeping mat and stored as such on the bike.