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Old September 9th 17, 05:40 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default program to compute gears, with table

AMuzi wrote:

Overall width. 4/5 speed systems used very
wide chain as you may recall. To get 8, 9,
10, 11 sprockets inside the 130mm road format
(originally seven speeds) the sprockets are
closer and so the chain is smaller.


Is it enough to count the sprockets,
e.g. does an 8 sprocket casette always have the
same width? Or does that vary
between manufacturers?

And surely there aren't different chains for
8, 9, 10, and 11 casettes, i.e. four different
chain sizes?

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