Adult Helmets (measure around the head just above the ears and accross the forehead)
| Size | Adult Head (in) | Adult Head (cm) |
|---|---|---|
| XS | 20.9-21.3 | 53-54 |
| SM | 21.7-22 | 55-56 |
| MD | 22.4-22.8 | 57-58 |
| LG | 23.2-23.6 | 59-60 |
| XL | 24-24.4 | 61-62 |
| 2XL | 24.8-25.2 | 63-64 |
Answer Racing Nova Syncron Helmet Sizing Chart
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