Bicycle suspension travel log calculator

Calculate maximum observed stroke by component and maximum/specification with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use maximum observed stroke by component and maximum/specification to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Components: name, specified travel mm, observed strokes mm joined by |
Front,100,0|20|70 Rear,50,0|10|50
Maximum observed stroke by component (mm)
Front: 70; Rear: 50
Maximum/specification (%)
Front: 70; Rear: 100
Median observed stroke by component (mm)
Front: 20; Rear: 10
Observations greater than specified travel
Front: 0; Rear: 0

Try another scenario

Components: name, specified travel mm, observed strokes mm joined by |
Front,100,0|20|120 Rear,50,0|10|50
Maximum observed stroke by component (mm)
Front: 120; Rear: 50
Maximum/specification (%)
Front: 120; Rear: 100
Median observed stroke by component (mm)
Front: 20; Rear: 10
Observations greater than specified travel
Front: 1; Rear: 0
Calculation method

Calculation method

Maximum observed stroke by component (mm)

Take the maximum recorded stroke without clamping it to a specification.

Maximum/specification (%)

100×maximum stroke/entered travel.

Median observed stroke by component (mm)

Sort observations and use the middle value, or mean of the middle pair.

Observations greater than specified travel

Count values strictly greater than the supplied travel.

Symbols and units
a
Components: name, specified travel mm, observed strokes mm joined by |

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • An observation log that preserves apparent over-travel for review rather than treating it as a valid setting. It does not diagnose suspension condition or recommend pressure, damping or preload.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

OpenStax: arithmetic model background ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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