“Reinventing the wheel” is typically seen as a bad thing. It’s a waste of time, because it’s been done already. In Stringbike’s defense, they turned a wheel into a triangle, which is a different matter altogether. In particular, they turned the standard bicycle chainwheel into a triangle. Oh, and they ditched the chain, replacing it with strings. The strings are virtually silent, and only a few bucks to replace. Plus there’s four of them, so breaking one doesn’t leave you walking home. It all sounds very slick and practical, until the $3,500 price tag. Even then, it’s cool to see innovation in a very long-establish drive system.

Sometimes, even a bad video is worth 1,000 words:

Stringbike’s website is, but distribution appears limited so far.