[EricH]

Originally Posted by junefish

I did a quick Google search for 20" bicycle wheels, and found a "incredibly lightweight" bike that weighs 19.6 kilograms (about 44 lbs).

That's actually a rather heavy bike for that size of wheel. The high-performance racing bikes don't weigh any 44 lbs; my mountain bike, which isn't high-performance, is much closer to the 20-30 lb range. It's got larger wheels than that, too.

I'd be VERY surprised if 4 standard bike wheels came in over 10 lbs; I'd figure more in the 4-8 lb range.