Measuring your head
To find the right size for you, wrap a measuring tape around the head, just above the ears and level front to back to find your circumference. Once you have your measurement, you can use the chart beneath as a guide to find your size. Keep in mind that all Sweet Protection helmets have adjustments systems and are delivered with fit pads to ensure the perfect fit.

Road Bike helmets
Size |
S |
M |
L |
Centimeters |
52 - 54 cm |
54 - 57 cm |
57 - 60 cm |
Inches |
20.50 - 21.25" |
21.25 - 22.45" |
22.45 - 23.60" |
Bike helmets - Adults
Size |
S/M |
M/L |
L/XL |
Centimeters |
53 - 56 cm |
56 - 59 cm |
59 - 61 cm |
Inches |
20.85 - 22" |
22 - 23.20" |
23.20 - 24" |
Bike helmets - Juniors
Size |
XS/S |
S/M |
Centimeters |
50 - 53 cm |
53 - 56 cm |
Inches |
19.68 - 20.85" |
20.85 - 22" |