CYCLE CALCULATORS

CalculatorsCassette Range Calculator

Cassette Range Calculator

Range is a property of the cassette alone. It says nothing about whether your chainring makes the easiest gear actually easy.

Inputs

Units

Results

Range
309 %

The Result is indicative and educational. It does not constitute a design, a technical opinion or medical advice and does not replace calculations or verification by a person with the appropriate qualifications and authorisations. Before purchase, installation or use in practice – in particular in electrical installations – the Result should be verified by a qualified specialist. Details: Terms of Service, point 4.

How the number is made

Range % = (largest cog ÷ smallest cog) × 100. A 10–52 is 5.2 × 100 = 520%.

Steps between cogs can still be clumsy inside a wide range. The average step is (largest ÷ smallest)^(1 ÷ (cogs − 1)): a 12-speed 10–52 averages about 16% per shift, an 11-speed 11–28 about 10%.

Related calculators

Questions

Is 520% better than 300%?

Only if you need the low gear. A wider range usually means bigger jumps between shifts.

Does a double chainring add range?

Yes, and the two ranges multiply: (big ring ÷ small ring) × (largest cog ÷ smallest cog) × 100. A 50/34 with an 11-34 gives about 455%. Derailleur capacity is a different sum, built from the tooth differences.

Is a 10-52 cassette really 520 percent?

Yes. Range percent is the large cog divided by the small cog, times 100. 52 divided by 10 is 520 percent.

Example products

Product links are Affiliate Links to Amazon websites. Using them does not cost you anything extra, and if you make a purchase we may receive a commission. Details: Terms of Service, point 5.