Bell Helmets - Lithium
| Size | CM | IN | HAT SIZE (IN) |
| XS | 53-54 | 20 7/8 - 21 5/8 | 6 5/8 – 6 3/4 |
| SM | 55-56 | 21 5/8 - 22 | 6 7/8 – 7 |
| MD | 57-58 | 22 1/2 – 22 3/4 | 7 1/8 – 7 1/4 |
| LG | 58-59 | 22 3/4 – 23 1/4 | 7 1/4 – 7 3/8 |
| XL | 60-61 | 23 5/8 – 24 | 7 1/2 – 7 5/8 |
| XXL | 62-63 | 24 1/2 – 24 3/4 | 7 3/4 – 7 7/8 |
| XXXL | 62-63 | 24 1/2 – 24 3/4 | 8 1/8 – 8 1/4 |