The invention concerns chain transmission containing two toothed sprockets, a chain and a tensioner where centre (S) of pitch circle of the driven sprocket (2) lays outside of the circle inscribed in the part of chain (4) mating with the sprocket (2). Each link (5,6) of the chain (4) contains plates (7) connected by three pins (8 and 9), while the axis of one of the pin (9) lays outside of the plane determined by axes of the remaining pins (8) of the link (5, 6).
