Large box transport with my road bike
I want to either get a very large backpack or possibly a large mesh backpack. OR... even something i can tie or bungie cord large boxes to. I occasionally need to transport large boxes that won't fit in panniers or my current backpack. They're usually not heavy or need to travel far. But they're bulky. I just need to make the one mile or so trip to the post office or Fedex. Anyone have a solution.
In a desperate moment I made a quick one with rope, felt, and a staple gun, but it's a pain AND it's ridiculous.
I'd like to be able to take boxes as large as 20x16x12... or even larger maybe.
I have a Tubus Airy rack. I don't know how I'd get boxes that big to balance on the small rack top.