

This bike has unusual pattern and drive: two steering wheels, instead of rotating the pedal — levers. The force on the chain is transmitted when a cyclist privste from the saddle. And of course, no accident that the author constructs A. Zavratnik from the city of Kirov believes that a bike of this scheme, in addition to their primary role, is especially good as a casual trainer, substitute physical exercises.
Recommend to read
AND THE CHAIR, AND THE BED AND SOFA
Decided to respond to the invitation to become your author. I want to share a simple chair design that can act as a module to construct, for example, corner sofa, single or double beds....
THE COLUMN ON THE SUSPENSION
Radio and television sets often have a certain height, what is it used for rather bulky factory wall brackets shelves. However, the easiest, but less secure and convenient suspension is...