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GMax Helmet Size Chart

Gmax Motorcycle Helmets

GMax Helmets have style and safety built in.
Deals on GMax Helmets >LOOK<

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”