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2. Chain drive - Wikipedia

   en.wikipedia.org/wiki/Chain_drive

   Drive shafts are another common method used to move mechanical power around that is sometimes evaluated in comparison to chain drive; in particular belt drive vs chain drive vs shaft drive is a key design decision for most motorcycles. Drive shafts tend to be tougher and more reliable than chain drive, but the bevel gears have far more friction ...

3. Belt (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Belt_(mechanical)

   A drawback to belt drives is that they transmit less power than gears or chain drives. However, improvements in belt engineering allow use of belts in systems that formerly only allowed chain drives or gears. Power transmitted between a belt and a pulley is expressed as the product of difference of tension and belt velocity:

4. 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 ...

5. Continuously variable transmission - Wikipedia

   en.wikipedia.org/wiki/Continuously_variable...

   Positively Infinitely Variable (PIV) chain drives are distinct in that the chain positively interlocks with the conical pulleys. This is achieved by having a stack of many small rectangular plates in each chain link that can slide independently from side-to-side. The plates may be quite thin, around a millimeter thick.

6. Mechanical advantage - Wikipedia

   en.wikipedia.org/wiki/Mechanical_advantage

   For a toothed belt drive, the number of teeth on the sprocket can be used. For friction belt drives the pitch radius of the input and output pulleys must be used. The mechanical advantage of a pair of a chain drive or toothed belt drive with an input sprocket with N A teeth and the output sprocket has N B teeth is given by

7. 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.

8. Motorcycle components - Wikipedia

   en.wikipedia.org/wiki/Motorcycle_components

   Replacing a drive belt typically requires removal of the swingarm, since belts cannot be split the way a chain with a master link can. A shaft-drive is usually completely enclosed; the visual cue is a tube extending from the rear of the transmission to a bell housing on the rear wheel.

9. Pulley - Wikipedia

   en.wikipedia.org/wiki/Pulley

   A belt drive is analogous to that of a chain drive; however, a belt sheave may be smooth (devoid of discrete interlocking members as would be found on a chain sprocket, spur gear, or timing belt) so that the mechanical advantage is approximately given by the ratio of the pitch diameter of the sheaves only, not fixed exactly by the ratio of ...