The book, Wild Fermentation, a u-lock, a 6ft cable lock, and 19 bricks.
Firstly, no I did not think that those measly bungee cords would hold the bricks if I banked too far or hit a large bump...they mostly just kept them in place (and I surely did not want a repeat of what happened when I was carrying lumber in my truck the other day). I happened to come upon them as I was pedaling home this evening. Someone had put them out at the curb with their trash. I'm not sure what I plan to do with them but if you are like me and have an urban garden you know that you can never have enough bricks. Anyhow I took it very slowly and kept my eyes on the road directly in front of me looking for bumps or other disturbances...it is much easier to watch for these things when on a bike. Anyhow, because the bricks were varying sizes, the best I can figure (using a simple Google search) is that a brick weighs between 5lbs and 9lbs (2.2kgs to 4kgs), so if I took an average of 7lbs (3.1kgs) and multiplied it by 19 bricks we're looking at around 133lbs (60.4kgs) on the back of a bike. There are only a few bikes that can possibly handle this payload and I was glad to have been on my Mundo. Bikes are good for transporting us from place to place, bikes are good for leisure activity, and without doubt, bikes can also haul stuff. This is just one simple example.