Size Guide: HJC Helmets

RPHA Series, i90, C91

Size	Measurement (CM)
XS	54 - 55
S	55 - 56
M	57 - 58
L	58 - 59
XL	60 - 61
2XL	62 - 63

F70, C70, i40, i50

Size	Measurements (CM)
XS	53 - 54
S	55 - 56
M	57 - 58
L	59 - 60
XL	61 - 62
2XL	63 - 64

 

C80

Size	Measurements (CM)
XS	53 - 54
S	55 - 56
M	57 - 58
L	58 - 59
XL	60 - 61
2XL	62 - 63