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  2. File:Labeled Bicycle Hub Comparison-en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Labeled_Bicycle_Hub...

    English: A diagram comparing two types of rear bicycle hubs, freehub, and threaded hub, both with adjustable cup and cone bearing systems. The image is cut away to show the axle and bearing system, and labelled in English.

  3. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Fork: a mechanical assembly that integrates a bicycle's frame to its front wheel and handlebars, allowing steering by virtue of its steerer tube; Fork crown: the point at which the two blades of the fork meet below the steerer tube. Fork end: paired slots on a fork or frame at which the axle of the wheel is attached. See also Dropout

  4. Hub-center steering - Wikipedia

    en.wikipedia.org/wiki/Hub-center_steering

    Hub-center steering is characterized by the steering pivot points being inside the hub of the wheel, rather than above the wheel in the headstock as in the traditional layout. Most hub-center arrangements employ a swingarm that extends from the bottom of the engine/frame to the center of the front wheel.

  5. Bicycle drivetrain systems - Wikipedia

    en.wikipedia.org/wiki/Bicycle_drivetrain_systems

    Major changes in bicycle form have often been initiated or accompanied by advances in drivetrain systems. Several early drivetrains used straight-cut gears that meshed directly with each other outside of the hub. [1] [2] Some bicycles have used a double-sided rear wheel, with different-sized sprockets on each side. To change gears, the rider ...

  6. Wheel hub motor - Wikipedia

    en.wikipedia.org/wiki/Wheel_hub_motor

    A wheel hub motor, hub motor, or in-wheel motor is a motor that is incorporated into the hub of the wheel. Wheel-hub motors are commonly found on electric bicycles. Electric hub motors were well received in early electric cars, but have not been commercially successful in modern production cars [1] [2] because they negatively affect vehicle ...

  7. Rohloff Speedhub - Wikipedia

    en.wikipedia.org/wiki/Rohloff_Speedhub

    The Speedhub is more expensive than competing bicycle gear systems (both hub gears and derailleur gears), and it is some 100 grams heavier than a comparable set of derailleur gears, [2] but offers about the same gear range (and at its ratio of 5.26:1 more range than a typical road bike ratio of 4.28:1 with 50/34 chainrings and 11 to 32 tooth ...

  8. Freehub - Wikipedia

    en.wikipedia.org/wiki/Freehub

    Freehub vs freewheel hub. The freehub concept answers several drawbacks encountered with the freewheel design: Freewheels are threaded onto an axle hub, using conventional right-hand threads. As the bicycle rider pedals, the freewheel is continuously kept tight, as chain torque is in the right-hand direction. This becomes a problem when the ...

  9. Quick release skewer - Wikipedia

    en.wikipedia.org/wiki/Quick_release_skewer

    The mechanism was invented in 1927 by Tullio Campagnolo, an Italian bicycle racer. He was frustrated when he attempted to change gears during a race. At the time there was but one cog on each side of the rear hub, so gear changes necessitated stopping, removing the rear wheel, flipping it over horizontally so that the opposite cog is engaged by the chain, and finally reinstalling the wheel.

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