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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.
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.
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 ...
10-speed bicycle cassette. On a bicycle, the cassette or cluster [1] is the set of multiple sprockets that attaches to the hub on the rear wheel.A cogset works with a rear derailleur to provide multiple gear ratios to the rider.
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.
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 ...
The Diametral Pitch (DP) is the number of teeth per inch of diameter of the pitch circle. The units of DP are inverse inches (1/in). [3] DP = Diametral Pitch PD = Pitch Circle Diameter in inches CP = Circular Pitch in inches n = Number of Teeth DP = n / PD The Diametral Pitch (DP) is equal to π divided by the Circular Pitch (CP). DP = 3.1416 / CP
For the wide-ratio transmission, the first gear ratio is 4:1 or 4, and in second gear it is 2:1 or 2, so the progression is equal to 4 / 2 = 2 (or 200%). For the close-ratio transmission, first gear has a 4:1 ratio or 4, and second gear has a ratio of 3:1 or 3, so the progression between gears is 4 / 3 , or 133%.