That's how my KLR 650 motorbike looked when I reached home, after spending a week at the Burning Man festival. I'd say there was at least 150 lbs of luggage on that work-horse. Plus a few lbs of playa dust!

It looked like that from the side.

The bike was so heavy that it was unstable on the kick-stand, so i was using a wooden stick to prop it on the other side.

My left pannier is an aluminium Happy-Trail box, while the right one is a Pelican 1550 plastic case. The rack is a knock-off of the Happy-Trail rack, and it proved to be pretty sturdy.