Helmet Size Chart
Adult Helmets
Size
X-Small
Small
Medium
Large
X-Large
XX-Large
Centimeter
53 - 54 cm
54 - 55 cm
57 - 58cm
58 - 59 cm
61 - 62 cm
62 -63 cm
Inches
21 - 21 1/2
21 1/2 - 22
22 1/2 - 23
23 - 23 1/2
24 - 24 1/2
24 1/2 - 25
Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.