I'm curious if anyone has attempted this idea yet. I have a Ventura rack for my bike but miss having a waterproof, lockable place to keep my electronics, money, etc when on the road.
The Venture hangs a bag off the back; why not bolt a top box to a spare passenger seat (also something I have) and double-up the space?
Anyone tried this or considered it? I might just have to do it.
Or they even make this jobby with a padded backrest of those long days on the slab.
Thoughts, concerns, issues?