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HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet
HJC I90 Helmet

0100-1911

HJC I90 Helmet

Size Guide
HJC Helmet Sizing Chart

Helmet Size Convention Chart

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

SIZE CENTIMETER HAT SIZE INCHES
XXS 51-52 6 3/8 – 6 1/2 20 – 20 1/2
XS 53 – 54 6 5/8 – 6 3/4 20 7/8 – 21 1/4
S 55 – 56 6 7/8 – 7 21 5/8 – 22
M 57 -58 7 1/8 – 7 1/4 22 1/2 – 22 7/8
L 59 -60 7 3/8 – 7 1/2 23 1/4 – 23 5/8
XL 61 – 62 7 5/8 – 7 3/4 24 – 24 3/8
2XL 63 – 64 7 7/8 – 8 24 3/4 – 25 1/4
3XL 65 – 66 8 1/8 – 8 1/4 25 5/8 – 26
4XL 67 – 68 8 3/8 – 8 1/2 26 3/8 – 26 3/4
5XL 69 – 70 8 3/4 – 8 3/4 27 1/4 – 27 5/8

 

RPHA Series, FG-Jet, FG-17 Size Chart
SIZE CENTIMETER HAT SIZE INCHES
XS 54-55 6 3/4 – 6 7/8 21 1/4 – 21 5/8
S 55-56 6 7/8 – 7 21 5/8 – 22
M 57-58 7 1/8 – 7 1/4 22 1/2 – 22 7/8
L 58-59 7 1/4 – 7 3/8 23 7/8 – 23 1/4
XL 60-61 7 1/2 – 7 5/8 23 5/8 – 24
2XL 62-63 7 3/4 – 7 7/8 24 3/8 – 24 3/4
3XL 64-65 8 – 8 1/8 25 1/4 – 25 5/8

 

CL-17 & CL-17 Plus
SIZE CENTIMETER HAT SIZE INCHES
XS 54-55 6 3/4 – 6 7/8 21 1/4 – 21 5/8
S 56-57 7 – 7 1/8 22 – 22 1/2
M 58-59 7 1/4 – 7 1/8 22 7/8 – 23 1/4
L 60-61 7 1/2 – 7 5/8 23 5/8 – 24
XL 62-63 7 3/4 – 7 7/8 24 3/8 – 24 3/4
2XL 63-64 8 – 8 1/8 25 1/4 – 25 5/8
3XL 65-66 8 1/8 – 8 1/4 25 5/8 – 26
4XL 67-68
8 3/8 – 8 1/2 		26 3/8 – 26 3/4
5XL 69-70
8 3/4 – 8 3/4
27 1/4 – 27 5/8
Youth Size
SIZE CENTIMETER HAT SIZE INCHES
YOUTH S 49-50 6 1/8 – 6 1/4 19 1/4 – 19 3/4
YOUTH M 51-52 6 3/8 – 6 1/2 20 – 20 1/2
YOUTH L 53-54 6 5/8 – 6 3/4 20 7/8 – 21 1/4
YOUTH XL 55-56 6 7/8 – 7 21 5/8 – 22
$247.00 USD - $258.00 USD $235.00 USD - $243.00 USD
Size Guide
HJC Helmet Sizing Chart

Helmet Size Convention Chart

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

SIZE CENTIMETER HAT SIZE INCHES
XXS 51-52 6 3/8 – 6 1/2 20 – 20 1/2
XS 53 – 54 6 5/8 – 6 3/4 20 7/8 – 21 1/4
S 55 – 56 6 7/8 – 7 21 5/8 – 22
M 57 -58 7 1/8 – 7 1/4 22 1/2 – 22 7/8
L 59 -60 7 3/8 – 7 1/2 23 1/4 – 23 5/8
XL 61 – 62 7 5/8 – 7 3/4 24 – 24 3/8
2XL 63 – 64 7 7/8 – 8 24 3/4 – 25 1/4
3XL 65 – 66 8 1/8 – 8 1/4 25 5/8 – 26
4XL 67 – 68 8 3/8 – 8 1/2 26 3/8 – 26 3/4
5XL 69 – 70 8 3/4 – 8 3/4 27 1/4 – 27 5/8

 

RPHA Series, FG-Jet, FG-17 Size Chart
SIZE CENTIMETER HAT SIZE INCHES
XS 54-55 6 3/4 – 6 7/8 21 1/4 – 21 5/8
S 55-56 6 7/8 – 7 21 5/8 – 22
M 57-58 7 1/8 – 7 1/4 22 1/2 – 22 7/8
L 58-59 7 1/4 – 7 3/8 23 7/8 – 23 1/4
XL 60-61 7 1/2 – 7 5/8 23 5/8 – 24
2XL 62-63 7 3/4 – 7 7/8 24 3/8 – 24 3/4
3XL 64-65 8 – 8 1/8 25 1/4 – 25 5/8

 

CL-17 & CL-17 Plus
SIZE CENTIMETER HAT SIZE INCHES
XS 54-55 6 3/4 – 6 7/8 21 1/4 – 21 5/8
S 56-57 7 – 7 1/8 22 – 22 1/2
M 58-59 7 1/4 – 7 1/8 22 7/8 – 23 1/4
L 60-61 7 1/2 – 7 5/8 23 5/8 – 24
XL 62-63 7 3/4 – 7 7/8 24 3/8 – 24 3/4
2XL 63-64 8 – 8 1/8 25 1/4 – 25 5/8
3XL 65-66 8 1/8 – 8 1/4 25 5/8 – 26
4XL 67-68
8 3/8 – 8 1/2 		26 3/8 – 26 3/4
5XL 69-70
8 3/4 – 8 3/4
27 1/4 – 27 5/8
Youth Size
SIZE CENTIMETER HAT SIZE INCHES
YOUTH S 49-50 6 1/8 – 6 1/4 19 1/4 – 19 3/4
YOUTH M 51-52 6 3/8 – 6 1/2 20 – 20 1/2
YOUTH L 53-54 6 5/8 – 6 3/4 20 7/8 – 21 1/4
YOUTH XL 55-56 6 7/8 – 7 21 5/8 – 22

6 items left

HJC I90 Helmet

Features

  • Lightweight polycarbonate composite shell
  • Aerodynamic advanced CAD shape with enlarged eye port for +10mm greater visibility
  • Upgraded center one-touch open/close locking system
  • ACS Advanced Channeling Ventilation System with seven intake vents and two exhaust venturi vents at the rear spoiler
  • Chin bar vent flows air across the face shield to help eliminate shield fogging
  • SuperCool® moisture-wick. . . Show More >

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