| SIZE | HAT SIZE | MEASUREMENT (inches) |
| 52 | 6 1/2 | 20 |
| 53 | 6 5/8 | 21 |
| 54 | 6 3/4 | 21 |
| 55 | 6 7/8 | 22 |
| 56 | 7 | 22 |
| 57 | 7 1/8 | 22 |
| 58 | 7 1/4 | 23 |
| 59 | 7 3/8 | 23 |
| 60 | 7 1/2 | 24 |
| 61 | 7 5/8 | 24 |
| 62 | 7 3/4 | 24 |
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Bell continues to innovate with the KC7-CMR Carbon, the first ultra-lightweight carbon youth karting helmet on the market. Based on the advanced HP7 and incorporating the same performance technology, this sleek and aerodynamic design features an advanced ventilation system with 14 air intake and extraction channels designed to maximize cooling and a Double Screen Anti-Fog (DSAF) insert to prevent fogging in rain conditions. Designed for karting drivers under the age of 18, the KC7-CMR Carbon is a winning choice for the next generation of champion drivers. Snell-FIA CMR-2016 homologated.
