Oh...I just have to reply to this one. The looniest thing I ever hauled on my bike (old Schwinn mountain bike....early 90's) is a HUGE load of firewood for my campfire. I had parked my little class C motor home in a park....and the source for firewood was about a mile away.

By the time I got back to my campsite....my back tire was flat as a pancake.

Duh.

Best to all:
Maureen