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The 14-speed Rohloff Speedhub hub gear, introduced in 1998, has a range exceeding 5 to 1, and is thus comparable in range to 24, 27 and 30-speed derailleur systems (with 3×8, 3×9 and 3×10 cogs front and rear), since the latter have three overlapping ranges often with only about 14 distinct gears. As there is no overlap with the Speedhub, the ...
An electronic gear-shifting system is a method of changing gears on a bicycle, which enables riders to shift with electronic switches instead of using conventional control levers and mechanical cables. The switches are connected by wire or wirelessly to a battery pack and to a small electric motor that drives the derailleur, switching the chain ...
Power transmission. Bicycle drivetrain systems have been developed to transmit power from riders to drive wheels by a variety of methods. Most bicycle drivetrain systems incorporate a freewheel to allow coasting, but direct-drive and fixed-gear systems do not. The latter are sometimes also described as bicycle brake systems. A belt-drive crankset.
A bicycle gearbox with chain tensioner. Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns. On some bicycles there is only one gear and, therefore, the gear ratio is fixed, but most modern bicycles have multiple ...
Inter 5E - A 5-speed hub targeted at the e-bike market, launched in 2019. Unrelated to the previous Inter 5 model. Unrelated to the previous Inter 5 model. Available with a conventional twist-grip for mechanical shifting (SG-C70 00 -5 X series), or with an automatic shifter (SG-C70 50 -5 X series) [ 10 ] integrated with the Shimano STEPS e-bike ...
A freehub is a type of bicycle hub that incorporates a ratcheting mechanism. A set of sprockets (called a "cassette") is mounted onto a splined shaft of the freehub to engage the chain. The ratcheting mechanism is a part of the hub, in contrast to a freewheel, an older technology, which contains both the sprockets and a ratcheting mechanism in ...
Three-speed bicycle. The three-speed bicycle is a bicycle that uses internal hub gears at the rear wheel hub to provide three gear ratios. Three-speed hubs have been in use since the early 1900s. Though they are heavier than comparable derailleur systems, internal-gear hub systems generally last longer and require less maintenance.
Alfine 700 is an internal epicyclic hub gear for bicycles, manufactured by Shimano since 2010. The 700 has 11 speeds, with intervals of approximately 29% for the first to second gear gap, and 13% - 14% for the other gears, resulting in an overall gear range of 409%. [6] There is no direct drive 1:1 gear. It is operated by a single ratcheting ...
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