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  2. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Skirt guard or coatguard: a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage from catching in the wheel, or in the gap between the rim and the brakes; Spindle: an axle around which a pedal rotates; threaded at one end to screw into crank arms; Spoke: connects wheel rim to hub ...

  3. Hubcap - Wikipedia

    en.wikipedia.org/wiki/Hubcap

    A threaded brass hubcap on a cart wheel with artillery style hub Various automobile hubcaps. A hubcap or hub cap is a decorative disk on an automobile wheel that covers at minimum the central portion of the wheel, called the hub. [1] An automobile hubcap is used to cover the wheel hub and the wheel fasteners to reduce the accumulation of dirt ...

  4. Hub gear - Wikipedia

    en.wikipedia.org/wiki/Hub_gear

    A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and mechanism are exposed ...

  5. Flip-flop hub - Wikipedia

    en.wikipedia.org/wiki/Flip-flop_hub

    DK Bicycles introduced the Dual Drive hub back in the early 2000s which is a BMX Left/Right drive flip flop hub with the smaller sized metric (30 mm x 1 mm) BMX threads for 13T-15T freewheels, but also includes two threaded adapters, one left and one right, threaded inside to match the smaller metric threads and threaded on the outside with ...

  6. Bicycle wheel - Wikipedia

    en.wikipedia.org/wiki/Bicycle_wheel

    Since the 1980s, bicycles have adopted standard axle spacing: the hubs of front wheels are generally 100 mm wide fork spacing, road wheels with freehubs generally have a 130 mm wide rear wheel hub. Mountain bikes have adopted a 135 mm rear hub width, [4] which allows clearance to mount a brake disc on the hub or to decrease the wheel dish for a ...

  7. 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 ...

  8. Hub dynamo - Wikipedia

    en.wikipedia.org/wiki/Hub_dynamo

    A hub dynamo is a small electrical generator built into the front hub of a bicycle wheel that is usually used to power lights. Often the hub "dynamo" is not actually a dynamo, which creates DC, but a low-power magneto that creates AC. Most modern hub dynamos are regulated to 3 watts at 6 volts, although some will drive up to 6 watts at 12 volts.

  9. 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.