$9 Cardboard Bike

Full Article:
http://www.fastcodesign.com/1670753/this-9-cardboard-bike-can-support-riders-up-to-485lbs

Izhar Gafni has designed award winning industrial machines for peeling pomegranates and sewing shoes. He’s also a bike enthusiast who’s designed a lot of carbon fiber rigs. But one day, he’d heard about someone who’d built a cardboard canoe. The idea drilled its way into his consciousness, and ultimately, led him to create a cardboard bike called the Alfa.

The Alfa weighs 20lbs, yet supports riders up to 24 times its weight. It’s mostly cardboard and 100% recycled materials, yet uses a belt-driven pedal system that makes it maintenance free. And, maybe best of all, it’s project designed to be manufactured at about $9 to $12 per unit (and just $5 for a kids version), making it not only one of the most sustainable bikes you could imagine, but amongst the cheapest, depending on the markup...

Bikes are amongst the most efficient transportation systems in the planet, converting up to 99% of a person’s power into mobility that’s up to five times faster than walking. Imagine the impact for developing nations, assuming the Alfa (or a derivative) could handle itself on unpaved roads--especially when fitted with an optional small motor upgrade to enhance range--or what you could do in a small school district where every child could be given a bike in place of a few days of school-bus gas...