How do I measure my shoulder width?

Measure the distance between the bony tips of each acromion (the protruding bone on top of each shoulder). Use a tape measure across your back or have someone help. This measurement in centimetres is your starting point for handlebar width.

Should handlebar width match shoulder width exactly?

For road drop bars, matching shoulder width (centre-to-centre) or going 1-2cm narrower is typical. For mountain bike flat bars, add 5-15cm beyond shoulder width for better leverage and control on rough terrain.

Does handlebar width affect comfort?

Yes, significantly. Bars that are too narrow restrict breathing and cause shoulder tension. Bars that are too wide cause fatigue in the arms and shoulders. The correct width allows your arms to hang naturally from relaxed shoulders.

BikeCalcs

Handlebar Width Calculator

Calculate ideal handlebar width from shoulder measurement and riding style.

Shoulder Width

Bony tip to bony tip (acromion to acromion)

Riding StylePrimary riding discipline

Handlebar TypeType of handlebars on your bike

Upper Body FlexibilityAffects how narrow you can comfortably go

How We Calculate This

Starting from your shoulder width, adjustments are made for riding style (road, gravel, MTB), bar type (drop, flat, riser) and flexibility.

The result is rounded to the nearest standard size available. For flat bars, start wider and cut down in 5mm increments on each side until comfortable.

Frequently Asked Questions

Last updated: March 2026

All calculations are estimates. Always verify results and consult a professional bike fitter where appropriate.