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  2. Bicycle gearing - Wikipedia

    en.wikipedia.org/wiki/Bicycle_gearing

    Front/rear gear measurement uses two numbers (e.g. 53/19) where the first is the number of teeth in the front chainring and the second is the number of teeth in the rear sprocket. Without doing some arithmetic, it is not immediately obvious that 53/19 and 39/14 represent effectively the same gear ratio.

  3. Gear inches - Wikipedia

    en.wikipedia.org/wiki/Gear_inches

    For simplicity, 'gear inches' is normally rounded to the nearest whole number. For example, suppose the drive wheel is actually 26 inches in diameter. If the front chainring and rear sprocket have equal numbers of teeth, one turn of the pedals produces exactly one turn of the drive wheel, just as if the pedals were directly driving the drive wheel.

  4. Template:Calculator/doc - Wikipedia

    en.wikipedia.org/wiki/Template:Calculator/doc

    Add a calculator widget to the page. Like a spreadsheet you can refer to other widgets in the same page. Template parameters Parameter Description Type Status id id The id for this input. This is used to reference it in formula of other calculator templates String required type type What type of input box Suggested values plain number text radio checkbox passthru hidden range String required ...

  5. Template:Calculator-superimpose/doc - Wikipedia

    en.wikipedia.org/wiki/Template:Calculator...

    If calculator gadget is not enabled, should just show the x_default and y_default values. Supports all the same parameters as {{ Superimpose }} except x and y are now formulas, and there are two new parameters: x_default and y_default for the initial x and y values.

  6. 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 ...

  7. Template : WaistHeightRatio to BodyRoundnessIndex converter

    en.wikipedia.org/wiki/Template:WaistHeightRatio...

    This template's documentation is missing, inadequate, or does not accurately describe its functionality or the parameters in its code. Please help to expand and improve it . The above documentation is transcluded from Template:WaistHeightRatio to BodyRoundnessIndex converter/doc .

  8. Derailleur - Wikipedia

    en.wikipedia.org/wiki/Derailleur

    Notice that these family names do not give the exact shift ratios: the 2:1 shift ratio is in fact about 1.7 (Or 1.9 on the Dura Ace series up to 7400) rather than 2, and the native SRAM shift ratio is about 1.1. The family names of these standards are reversed by some in actuation ratio notation as opposed to that of the more common shift ratio.

  9. Template:Calculate ratio - Wikipedia

    en.wikipedia.org/wiki/Template:Calculate_ratio

    Calculates and displays a ratio at N:1 {{Calculate ratio|5|3}} gives 1.7:1 {{Calculate ratio|5|3|2}} gives 1.67:1 Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status 1 1 Number being divided Example 5 Number required 2 2 Number being converted to 1 Example 3 Number required 3 3 Number of decimals Default 1 Example 2 ...