Looks like the bike is not going to be the most expensive piece of equipment anymore …
Izhar Gafni is reinventing the two-wheeler. The Israeli mechanical engineer wowed the opening-day audience Wednesday at Moses Znaimer’s ideacity with his 28-pound (less than 13 kilograms) cardboard bike. Waterproof, rust-proof, made of renewable and recycled resources such as paper, plastic bottles and car tires, and able to support a rider 20 times its weight, Gafni’s invention costs about $9 to build.
http://www.thestar.com/...tion_inventions.html