Science

Bike Fitting Methods Explained

Modern fitting combines foundational formulas with rider-specific context. No single method solves everything in isolation, which is why the guide library matters.

LeMond / HamleyKOPSDynamic fit
Baseline geometry
Saddle position reference
Dynamic movement validation
Different methods answer different questions inside the full fit workflow.

Comparison

Where each method fits

Use formulas as strong starting points, then validate them against the rider's stability, flexibility, and real riding context.

LeMond / Hamley Saddle Height

Baseline saddle height from inseam

Strength: Simple and repeatable starting point

Limit: Needs personal adjustment for flexibility and goals

KOPS (Knee Over Pedal Spindle)

Saddle fore-aft reference

Strength: Easy workshop reference

Limit: Not a complete performance model

Dynamic / Motion-Capture Fit

Joint angles under pedaling load

Strength: Rich movement data

Limit: Requires equipment and specialist time

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