Chainless bicycle or acatène is a bicycle that transmits power to the driven wheel through a mechanism other than a metal chain.
Examples Directly driven bicycle (see penny-farthing and unicycle) 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
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