Chainless bicycle
type of bicycle that does not use chains in its drive-train system

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
References
Anne Eisenburg (October 23, 2010). "Bicycles, Unchained and Grease-Free". NY Times. Retrieved 2010-10-28.
The public source identifies “Chainless bicycle” as type of bicycle that does not use chains in its drive-train system. This brief keeps that definition visible, then builds a research path around Chainless, bicycle and type.
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This entry incorporates text from “Chainless bicycle” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.