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2. Shaft-driven bicycle - Wikipedia

   en.wikipedia.org/wiki/Shaft-driven_bicycle

   Dynamic Runabout 7 shaft-driven bicycle Drive-shaft housing. A shaft-driven bicycle is a bicycle that uses a drive shaft instead of a chain to transmit power from the pedals to the wheel. Shaft drives were introduced in the 1880s, but were mostly supplanted by chain-driven bicycles due to the gear ranges possible with sprockets and derailleurs ...

3. Bicycle drivetrain systems - Wikipedia

   en.wikipedia.org/wiki/Bicycle_drivetrain_systems

   A chain drive and rear derailleur gear change, the most popular system in use today A shaft-drive with crankset and rear gear hub. Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels.

4. Cogset - Wikipedia

   en.wikipedia.org/wiki/Cogset

   When the sprockets need to be replaced due to wear or the user wishes to change gear ratios available, only the sprockets are replaced, not the ratchet mechanism. Cassettes also allow the use of sprockets with fewer teeth, as in micro drive systems. [5]

5. Belt-driven bicycle - Wikipedia

   en.wikipedia.org/wiki/Belt-driven_bicycle

   Gates bike belt drive system Belt-drive Belt-drive single-speed rear hub on a Trek District Belt-drive crankset on a Trek District Belt-drive multi-speed rear hub gear on a Trek Soho. A belt-driven bicycle is a chainless bicycle that uses a flexible belt, typically a synchronous toothed design, in order to transmit power from the pedals to the ...

6. Tsubakimoto Chain - Wikipedia

   en.wikipedia.org/wiki/Tsubakimoto_Chain

   Roller chain and sprockets, toothed belts and pulleys, hose and cable carrier systems, shaft coupling/locking, reducer/variable speed drives, motion control/clutch, overload protectors, linear actuators, automotive timing belt systems, conveyance, sorting, and storage systems, bulk handling systems, metalworking chips handling and coolant processing systems.

7. Bicycle gearing - Wikipedia

   en.wikipedia.org/wiki/Bicycle_gearing

   Current systems have gears incorporated in the crankset or bottom bracket. Patents for such systems appeared as early as 1890. [13] The Schlumpf Mountain Drive and Speed Drive have been available since 2001. [14] Some systems offer direct drive plus one of three variants (reduction 1:2.5, increase 1.65:1, and increase 2.5:1).