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  2. Sprocket - Wikipedia

    en.wikipedia.org/wiki/Sprocket

    16 tooth sprocket. Do = Sprocket diameter. Dp = Pitch diameter A sprocket and roller chain. A sprocket, [1] sprocket-wheel [2] or chainwheel is a profiled wheel with teeth that mesh with a chain, rack or other perforated or indented material. [3] [4] The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain ...

  3. Fixed-gear bicycle - Wikipedia

    en.wikipedia.org/wiki/Fixed-gear_bicycle

    A fixed-gear bicycle An 18-tooth sprocket that attaches to the rear hub of fixed-gear bike Track sprockets are typically attached and removed from the hub by screwing them with a chain whip. This tool incorporates a lockring spanner for securing a reverse threaded lockring against the sprocket.

  4. Skip-link chain - Wikipedia

    en.wikipedia.org/wiki/Skip-link_chain

    Since sprocket teeth run on rollers, they cannot be usefully wider than the width of the narrow-spaced links, so the tooth can be no wider than with a symmetrical chain. Thus, skip-link chain spreads wear over half the number of teeth and has worse sprocket durability than a symmetrical roller chain.

  5. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Sprocket or cog: wheel with teeth that meshes with the chain; one of the wheels in the cogset or crankset; Steerer tube: a tube on top of a fork that is inserted through frame and serves as an axle by means of which bicycle can be steered; Stem: a bracket used to attach handlebars to steerer tube of fork. Usually secured by pinch bolts

  6. Bicycle chain - Wikipedia

    en.wikipedia.org/wiki/Bicycle_chain

    Bicycle chains Roller chain and sprocket. A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it.Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.

  7. Chain drive - Wikipedia

    en.wikipedia.org/wiki/Chain_drive

    One problem with roller chains is the variation in speed, or surging, caused by the acceleration and deceleration of the chain as it goes around the sprocket link by link. It starts as soon as the pitch line of the chain contacts the first tooth of the sprocket. This contact occurs at a point below the pitch circle of the sprocket.

  8. Bicycle gearing - Wikipedia

    en.wikipedia.org/wiki/Bicycle_gearing

    A step of 7% corresponds to a 1-tooth change from a 14-tooth sprocket to a 15-tooth sprocket, while a step of 15% corresponds to a 2-tooth change from a 13-tooth sprocket to a 15-tooth sprocket. By contrast, car engines deliver power over a much larger range of speeds than cyclists' legs do, so relative differences of 30% or more are common for ...

  9. Hyperglide - Wikipedia

    en.wikipedia.org/wiki/Hyperglide

    The individual sprockets on a Hyperglide cassette or freewheel are designed specifically to work with their neighbours. [3] For example, the 18-tooth sprocket on a wide-range cassette (such as one for a mountain bike) will have a different ramp pattern than the 18-tooth sprocket on a narrow-range cassette, because the number of teeth on the neighbouring sprocket requires a different ramp ...

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