Summer / Bike Helmets Sizing
Applies to Bell Product Types: Bike Helmets.
How to Measure: Wrap a soft tape measure around your head about 1 inch above your eyebrows. Bell helmets feature adjustable dial-fit systems to fine-tune the fit within the size range [[1]].
| Helmet Size | Head Circumference (cm) | Head Circumference (in) |
|---|---|---|
| Youth / Toddler | 48 - 52 cm | 18.9" - 20.5" |
| Youth / Child | 50 - 54 cm | 19.7" - 21.25" |
| Adult Small | 51 - 55 cm | 20" - 21.75" |
| Adult Medium / Large | 54 - 61 cm | 21.25" - 24" |
| Adult XL | 58 - 63 cm | 22.8" - 24.8" |