FIELD: transportation.
SUBSTANCE: bicycle comprises a frame, a saddle, a sprocket and a chain, a front steering wheel and a rear driving wheel, each of which comprises a rim and a tire. The bicycle comprises an additional rear driving wheel. The wheel rims contact an endless flexible elastic hollow band under pressure, having transverse external and internal stiffeners on the side of the surface contacting the road and the opposite surface. In the absence of pressure, the stiffeners are mechanically connected to springs disposed radially relative to the wheels.
EFFECT: increasing the passability.
3 cl, 2 dwg
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