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 3/420 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 7/821 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 5/823 5/8 – 24
2XL62 – 637 3/4 – 7 7/824 3/8 – 24 3/4
3XL64 – 658 – 8 1/825 1/4 – 25 5/8

CL-17 & CL-17 Plus

SIZECENTIMETERHAT SIZEINCHES
XS54 – 556 3/4 – 6 7/821 1/4 – 21 5/8
S56 – 577 – 7 1/822 – 22 1/2
M58 – 597 1/4 – 7 3/822 7/8 – 23 1/4
L60 – 617 1/2 – 7 5/823 5/8 – 24
XL62 -637 3/4 – 7 7/824 3/8 – 24 3/4
2XL63 – 648 – 8 1/825 1/4 – 25 5/8
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

Youth Size

SIZECENTIMETERHAT SIZEINCHES
YOUTH S49 – 506 1/8 – 6 1/419 1/4 – 19 3/4
YOUTH M51 – 526 3/8 – 6 1/220 – 20 1/2
YOUTH L53 – 546 5/8 – 6 3/420 7/8 – 21 1/4
YOUTH S/M49 – 506 1/8 – 6 1/419 1/4 – 19 3/4
YOUTH L/XL6 3/8 – 6 1/26 3/8 – 6 1/220 – 20 1/2