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Measuring the circumference is an important step for choosing your helmet a incorrect size would result in a helmet or too wide or too tight and this would result in a reduction of driving comfort.
The measurement should be done using a centimetre and positioning it as in the photo around its head.
| Head circumference in CM | 49-50 | 51-52 | 53-54 | 55-56 | 57-58 | 59-60 | 61-62 | 63-64 | 65-66 |
|---|---|---|---|---|---|---|---|---|---|
| Size helmet | xxx | xxx | x | s | m | i | xl | xxx | xxxl |