The "gear ratio" for these pulleys is 3 to 11.

The "gear ratio" for these pulleys is 7 to 2.
The "gear ratio" for the first pair of pulleys of this compound pulley train is 7 to 11. The ratio of the second pair of pulleys is 3 to 2. Multiplying the two ratios gives 21 to 22, or almost 1.

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See also: Gears, Compound gear ratios