Sports

Bike Size Calculator

Estimate road bike frame size from height.

Parameters Live Compute
Calculated Output
Road frame size 52.5
Mountain frame 20.669
Formula: road frame ≈ height × 0.30
Step-by-Step Breakdown
1. Values used:
2. Height = 175
3.
4. Road frame size = 52.5
5. Mountain frame = 20.669
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A rough starting frame size from your height (a proper fit also depends on inseam).

The math behind it

road frame (cm) ≈ height × 0.30. Mountain bike frames are quoted in inches.

Worked Example

175 cm → ~52.5 cm road frame.

Frequently Asked Questions

Best method?

Inseam-based sizing and a professional fit are more accurate.

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