Länk till hpv trike med två hjul fram som lutar i kurvorna.
http://www.gizmag.com/go/5541/
The TRIX uses rack and pinion steering to offer a carving-like experience to human-powered trikes, removing the utilitarian feel of the flat turning arc of a rigid frame and replacing it with pure fun without removing the intrinsic cargo-carrying benefit of the three-wheeler. The steering also means a tighter turning circle and significantly improved manoeuvrability as it can slalom between obstacles and lean into curves like a motorcycle. As it is ideally suited to negotiate narrow, or congested streets, TRIX is ideal for city centre life and can be adapted to transport goods or become a space-age rickshaw with a single, front-seated passenger.