Phil Bridge, 21, of Stockport, Greater Manchester, believes his “ultimate green machine” will be cheap enough to attract occasional users while also deterring thieves.
The frame, made out of cardboard normally used in industrial packaging, could be produced for as little as £3.
Once the wheels and chain had been added the total price might rise to only £15.
[*Joking. With all the crap on it, my bike is pretty heavy. And that bee-otch is sturdy!]