SIZING CHART

Helmet Size Convention Chart

Warning IconThe size chart is only for reference. Always try the helmet on and follow this manual’s instructions for a proper fit.

SIZECENTIMETERHAT SIZEINCHES
XXS51-526 3/8 – 6 1/220 – 20 1/2
XS53-546 5/8 – 6 3/4 20 7/8 – 21 1/4
S55-566 7/8 – 721 5/8 – 22
M57-587 1/8 – 7 1/422 1/2 – 22 7/8
L59-607 3/8 – 7 1/223 1/4 – 23 5/8
XL61-627 5/8 – 7 3/424 – 24 3/8
2XL63-647 7/8 – 824 3/4 – 25 1/4
3XL65-668 1/8 – 8 1/425 5/8 – 26
4XL67-688 3/8 – 8 1/226 3/8 – 26 3/4
5XL69-708 3/4 – 8 3/427 1/4 – 27 5/8

RPHA Series, FG-Jet, FG-17 Helmet Size Chart

(Only FG-17 is available up to size 3XL)

SIZECENTIMETERHAT SIZEINCHES
XS54-556 3/4 – 6 7/8 21 1/4 – 21 5/8
S55-566 7/8 – 721 5/8 – 22
M57-587 1/8 – 7 1/422 1/2 – 22 7/8
L58-597 1/4 – 7 3/822 7/8 – 23 1/4
XL60-617 1/2 – 7 5/8 23 5/8 – 24
2XL62-637 3/4 – 7 7/8 24 3/8 – 24 3/4
3XL64-658 – 8 1/8 25 1/4 – 25 5/8

CL-17 & CL-17 Plus

SIZECENTIMETERHAT SIZEINCHES
XS54-556 3/4 – 6 7/8 21 1/4 – 21 5/8
S56-577 – 7 1/8 22 – 22 1/2
M58-597 1/4 – 7 3/8 22 7/8 – 23 1/4
L60-617 1/2 – 7 5/8 23 5/8 – 24
XL62-637 3/4 – 7 7/8 24 3/8 – 24 3/4
2XL63-648 – 8 1/8 25 1/4 – 25 5/8
3XL65-668 1/8 – 8 1/4 25 5/8 – 26
4XL67-688 3/8 – 8 1/2 26 3/8 – 26 3/4
5XL69-708 3/4 – 8 3/4 27 1/4 – 27 5/8

Youth Size

SIZECENTIMETERHAT SIZEINCHES
YOUTH S49 – 50 6 1/8 – 6 1/419 1/4 – 19 3/4
YOUTH M51 – 52 6 3/8 – 6 1/220 – 20 1/2
YOUTH L 53 – 54 6 5/8 – 6 3/4 20 7/8 – 21 1/4
YOUTH XL 55-566 7/8 – 721 5/8 – 22