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GMAX Helmets Size Chart

View All GMAX Helmets

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Adult Helmet

SizeHat SizeMeasurement (in)
XS6 3/421 1/4 - 21 5/8
SM7 - 7 1/8
22 - 22 7/16
MD7 1/4 - 7 3/8
22 3/16 - 23 1/4
LG7 1/2 - 7 5/8
23 5/8 - 24
XL7 3/4 - 7 7/8
24 3/8 - 24 13/16
2XL8 - 8 1/8
25 3/16 - 25 5/8
3XL8 1/4 - 8 3/8
26 - 26 3/8

Youth Helmet

SizeHat SizeMeasurement (in)
Y/S6 1/4 - 6 3/8
19 11/16 - 20 1/16
Y/SM/MD6 1/4 - 6 3/8
19 11/16 - 20 1/16
Y/MD6 1/2 - 6 5/8
20 7/16 - 20 7/8
Y/L/XL6 1/2 - 6 5/8
20 7/16 - 20 7/8
Y/L6 11/16
21

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.