Stringbike's roots lie in a postgraduate challenge at Budapest Technical University in the early 1990s, to think outside the box and overcome some design issues relating to chain-driven bicycles.
The Stringdrive alternating drive system benefits from 19 different "gear" transmission ratios – the outer position gives maximum and the inner gives minimum ratios – which are selected by moving the rope wheels up and down the notch positions on the swinging arm.
I think it will have advantages in the leverage you can get on the pedals.
