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Find your helmet size by comparing your head measurement to our sizing chart. Sizes vary slightly between brands, so be sure to check the measurements for the specific helmet brand you are interested in.
Of the variety of helmet safety standards out there, the three most common you'll find are DOT, ECE 22.05 and Snell.
Inches | 19 ¾" | 20 ⅛" | 20 ½" | 20 ⅞" | 21 ¼" | 21 ⅝" | 22" | 22 ⅜" | 22 ¾" | 23 ⅛" | 23 ½" | 24" | 24 ⅜" | 24 ¾" | 25 ⅛" | 25 ⅝" | 26" | 26 ⅜" | 26 ¾" | 27 ¼" | 27 ½" |
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Centimeters | 50 cm | 51 cm | 52 cm | 53 cm | 54 cm | 55 cm | 56 cm | 57 cm | 58 cm | 59 cm | 60 cm | 61 cm | 62 cm | 63 cm | 64 cm | 65 cm | 66 cm | 67 cm | 68 cm | 69 cm | 70 cm |
Hat Size | 6 ¼ | 6 ⅜ | 6 ½ | 6 ⅝ | 6 ¾ | 6 ⅞ | 7 | 7 ⅛ | 7 ¼ | 7 ⅜ | 7 ½ | 7 ⅝ | 7 ¾ | 7 ⅞ | 8 | 8 ⅜ | 8 ½ | 8 ⅝ | 8 ¾ | 8 ⅞ | 9 |
Arai | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | |||||||||||||
Bell | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
Biltwell | XS | S | M | L | XL | 2XL | |||||||||||||||
Fly | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
GMax | XS | SM | MD | LG | XL | 2XL | 3XL | 4XL | |||||||||||||
HCI | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
HJC | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | 4XL | 5XL | |||||||||||
Icon | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | |||||||||||||
Joe Rocket | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | |||||||||||||
LS2 | 2XS | XS | SM | MD | LG | XL | 2XL | ||||||||||||||
Reevu | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
Shark | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
Shoei | XS | SM | MD | LG | XL | 2XL | 3XL | ||||||||||||||
Skid Lid | 3XS | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | ||||||||||||
Speed & Strength |
XS | SM | MD | LG | XL | 2XL | |||||||||||||||
Torc | XS | SM | MD | LG | XL | 2XL | |||||||||||||||
Zox | 2XS | XS | SM | MD | LG | XL | 2XL | 3XL | 4XL | 5XL |