helmet-size-chart

These size charts and conversions are meant to serve as a guide. We recommend you try-on before riding to ensure full comfort and performance.

How to measure your size

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the size guide below.

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you've got the right size, you can adjust the fit.

Bike Helmet Sizing

Adult Super Fit size Circumference
S 51 - 55 cm
M 55 - 59 cm
L 59 - 63 cm
XL 63 - 65 cm
Youth size Circumference
XS (Scamp Model) 45 - 49 cm
S (Scamp Model) 49 - 53 cm
XS (Dime Model) 47 - 51 cm
S (Dime Model) 51 - 55 cm
Universal Child 47 - 54 cm
Universal Youth (Ages 5+) 50 - 57 cm
Adult Super Fit Full Face Circumference
S 51 - 53 cm
M 51 - 55 cm
L 55 - 59 cm
XL 59 - 63 cm
Adult Universal Circumference
Women Adult 50 - 57 cm
Unisex 54 - 61 cm
Extra Large 58 - 65 cm