Besides yourself, what do you think the largest and/or the heaviest load you have hauled on your bike? The largest can be different then the heaviest load. If you run errands on your bike then maybe the largest/heaviest load was grocery's. If you only commute then perhaps it is what ever you haul in your saddle bags/panniers. The largest load I ever hauled on my recumbent was a very large bag of cans and bottles. I took a load to the recycling center drop site. In the plastic/metal bin was a huge bag of cans and bottles, the kind you find next to pop machines. So I strapped it to my rear rack with the bungee cords I have and hauled it to the can redemption center. It netted me about $12.00. The bag was taller then my head and wider then my seat, but it was fairly light in weight. The heaviest load was probably 50 pounds and was what I hauled to the recycling center drop site. Most of it was paper and cardboard. Thankfully the 6 mile ride to the drop site was flat, but it still took a little longer then usual because of the weight.