Bontrager Helmets Size Chart
HOW TO MEASURE:
Measure the circumference of your head using a cloth tape measure or a piece of string and a ruler. Be sure to measure horizontally across your brow and over your ears. Use the chart below to find the proper helmet size based on your measurement.
Bontrager Helmets Sizing Guide
| Helmet Size | Fit Range (cm) *Head Circumference |
|---|---|
| TODDLER | 46 - 50 |
| CHILD | 48 - 52 |
| YOUTH / XS | 50 - 55 |
| SMALL | 51 - 57 |
| S / M | 51 - 58 |
| MEDIUM | 54 - 60 |
| M / L | 55 - 61 |
| LARGE | 58 - 63 |
| XLARGE | 60 - 66 |
| ASIA - S / M | 51 - 58 |
| ASIA - M / L | 55 - 61 |