A chainless bicycle is a bicycle that transmits power to the driven wheel through a mechanism other than a metal chain. Examples Directly driven "ordinary" bicycle (see penny-farthing) Shaft-driven bicycle Belt-driven bicycle Hydraulic bicycle (and pneumatic bicycle) Hybrid vehicle (see series hybrid bicycle) Some rowed bikes use a cable or a linkage. Stringbike the pulley-driven Hungarian designed bike See also Bicycle drivetrain systems Outline of cycling References External links Cycle types