I don’t see how feasible this design concept is. I mean, shouldn’t chains be stronger than some super thin strings? Designers from the Schwinn Csepel Zrt think otherwise, and that they’ve perfected the bicycle by removing that messy and oily chain, and replacing it with two cables.

The assembly can be seen in the image above (the taut cable trails off to the left). The rest of the pedal assembly includes unique kidney-shaped eccentric discs, a swinging unit and the transmission. The kidney discs serve the same function as a traditional circle-shaped gear, although in the String-bike’s case different sized and shaped discs can be installed that change performance (e.g. racing or touring).

Next is the swing unit, which is comprised of “oppositely swinging arms arranged for swinging movement around a pivoted auxiliary axis,” reports Hungarian Ambiance.

The final part would be the transmission. Much like a traditional 10-speed system, this controls speed and low and high gears. Using a controlled slide, the String-bike can change the height of the two pulleys employed by the system, which results in changed gears. Would love to see how this work in real life thought, as I can’t imagine how this would actually work out in reality.

Well according to the designers, the benefit of this includes better manoeuvrability of winding streets at speed. Well, to me the only benefit of this is the missing oily and greasily hands after servicing the bicycle.