Free USA Shipping over $150

GMAX Helmet Size Chart

Measure the head circumference one inch above the eyebrows and ears, then use this chart to find your approximate size.

 

CIRCUMFERENCE
HELMET LETTER SIZE
HAT SIZE
Metric cm
Inches
50 cm
19-11/16”
Youth/S
6-1/4”
51 cm
20-1/16”
Youth/S
6-3/8”
50 cm
19-11/16”
Youth Small/Medium
6-1/4”
51 cm
20-1/16”
Youth Small/Medium
6-3/8”
52 cm
20-7/16”
Youth/M
6-1/2”
53 cm
20-7/8”
Youth/M
6-5/8”
52 cm
20-7/16”
Youth Large/XLarge
6-1/2”
53 cm
20-7/8”
Youth Large/XLarge
6-5/8”
53.5 cm
21”
Youth/L
6-11/16”
54 cm
21-1/4”
XS
6-3/4”
55 cm
21-5/8”
XS
6-3/4”
56 cm
22”
S
7”
57 cm
22-7/16”
S
7-1/8”
58 cm
22-13/16”
M
7-1/4”
59 cm
23-1/4”
M
7-3/8”
60 cm
23-5/8”
L
7-1/2”
61 cm
24”
L
7-5/8”
62 cm
24-3/8”
XL
7-3/4”
63 cm
24-13/16”
XL
7-7/8”
64 cm
25-3/16”
XXL
8”
65 cm
25-5/8”
XXL
8-1/8”
66 cm
26”
XXXL
8-1/4”
67 cm
26-3/8”
XXXL
8-3/8”

Join our Mailing List

My Cart

Subtotal: $ 0.00

Your cart is currently empty.