These bikes are in production and two credible companies are behind it: the US Schwinn and the Hungarian Csepel. http://www.wired.com/2012/02/stringbike/ http:/

These bikes are in production and two credible companies are behind it: the US Schwinn and the Hungarian Csepel. http://www.wired.com/2012/02/stringbike/ http://www.wired.com/2012/02/stringbike/ The starting price is around 1400-2000 USD, but the company is quite flexible, so if you want modding it, it is very likely possible.