'Helmets intended for heads with a circumference of 60 cm or more are considered adult head protection and will not be accepted for certification to this standard. Children requiring head protection in these sizes are encouraged to wear suitable helmets certified to adult standards.' Found on page 4 - 'constructions - A. General' via the following link https://www.fiakarting.com/sites/default/files/2019-09/CM2016.pdf

https://www.fiakarting.com/sites/default/files/2023-08/Appendix_standards_for_karting_helmets.pdf

https://www.fiakarting.com/sites/default/files/2023-03/6.0_RT2023.pdf

It is important to know that we sell EUROPEAN sizes, on the internet you often see Arai helmets for sale at a lower rate, these are usually Arai helmets with JAPANESE sizes. The biggest difference is in the inside of the helmet a European has an oval head in the length and a Japanese has an oval head in the width. So when buying a helmet make sure that you follow the correct European dimensions.

If you have doubts about a certain 'authenticity' of an Arai helmet, please contact us as an importer within the BELUX for the Arai motorsport and karting products and we will be happy to help you.

With regard to racing helmets, people wearing spectacles should bear in mind that the vision opening of the GP5 WP offers a wider and higher field of vision, i.e. it is easier to put on spectacles.