Cardboard bicycle 'could change world'
A bicycle made almost entirely of cardboard has the potential to change transportation habits from the world's most congested cities to the poorest reaches of Africa, its Israeli inventor says.
Izhar Gafni (50), is an expert in designing automated mass-production lines. He is an amateur cycling enthusiast who for years toyed with an idea of making a bicycle from cardboard.
He said during a recent demonstration that after much trial and error, his latest prototype had proven itself and mass production will begin in a few months. The bike is expected to retail at about $20 (€15.43).
"I was always fascinated by applying unconventional technologies to materials and I did this on several occasions. But this was the culmination of a few things that came together. I worked for four years to cancel out the corrugated cardboard's weak structural points," Mr Gafni said.
"Making a cardboard box is easy and it can be very strong and durable, but to make a bicycle was extremely difficult and I had to find the right way to fold the cardboard in several different directions. It took a year and a half, with lots of testing and failure until I got it right," he said.
Cardboard has rarely been considered as raw material for products usually made of much stronger materials, such as metal.
Once the shape has been formed and cut, the cardboard is treated with a secret concoction of organic materials to give it its waterproof and fireproof qualities. In the final stage, it is coated with lacquer paint for appearance.
In testing the durability of the treated cardboard, Mr Gafni said he immersed a cross-section in a water tank for several months and it retained all its hardened characteristics.
Once ready for production, the bicycle will include no metal parts - even the brake mechanism and the wheel and pedal bearings will be made of recycled substances, although Mr Gafni said he could not yet reveal those details due to pending patent issues.
"I'm repeatedly surprised at just how strong this material is, it is amazing. Once we are ready to go to production, the bike will have no metal parts at all," Mr Gafni said.
The inventor's workshop, a ramshackle garden shed, is crammed with tools and bicycle parts and cardboard is strewn everywhere.
One of his first models was a pushbike he made as a toy for his young daughter, which she is still using months later.
Mr Gafni owns several top-of-the-range bicycles which he said are worth thousands of dollars each, but when his own creation reaches mass production, it should cost no more than about $20 to buy.
The cost of materials used are estimated at $9 per unit.
"When we started, a year and a half or two years ago, people laughed at us, but now we are getting at least a dozen emails every day asking where they can buy such a bicycle - so this really makes me hopeful that we will succeed," he said.
A ride of the prototype was quite stiff, but generally no different to other ordinary basic bikes.
Nimrod Elmish, Mr Gafni's business partner, said cardboard and other recycled materials could bring a major change in current production norms because grants and rebates would only be given for local production and there would be no financial benefits by making bicycles in cheap labour markets.