Giro Bike Helmets Size Chart
Giro Helmets Size Chart
| FIXTURE MIPS | ONE SIZE |
| Inches | 21.2 - 24 |
| Centimeters | 54 - 61 |
| TREMOR YOUTH MIPS | ONE SIZE |
| Inches | 19.6 - 22.4 |
| Centimeters | 50 - 57 |
| Disciple MIPS | Inches | Centimeters |
| Extra Small | 20 - 20.75" | 51 - 53 cm |
| Small | 21.25 - 22" | 54 - 56 cm |
| Medium | 22.5 - 23.25" | 57 - 59 cm |
| Large | 23.5 - 24.75" | 60 - 62 cm |