*This is the table for the measurements of helmets, for almost all helmets this table is equal, you can still consult a brand specifically by choosing it in the list below.

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.

X-lite AGV Nolan Grex Airoh Caberg