|Correct Fitting for
a HJC Helmet
HJC PROPER FIT
Never buy a used helmet or borrow someone else’s helmet.
Over time the protective foam in helmets will adjust to the
contours of a user’s head. A used or borrowed helmet
may not offer as much protection as a new helmet.
Wearing the wrong size helmet can increase your risk of serious
injury or death in an accident. A helmet that is too large
for your head may be dislodged or knocked off in an accident.
To select the right size helmet for your head, follow these
1. Measure your head. Wrap a tape measure around your head
about one inch (2.5 cm) above your eyebrows.
2. Use the sizing chart to select the helmet size that corresponds
most closely to your head measurement. If your head size falls
between two helmet sizes, try on the larger helmet first and
then the smaller size. Click here to see the sizing chart.
3. Try on the helmet by grasping both chin straps to pull
the helmet completely onto your head, ensuring that the top
of your head is in contact with the top of the helmet interior.
4. Check for a proper fit. To make sure your helmet is
the right size, check that:
• The helmet inner lining fits snugly around your
• The top pad presses firmly on your head.
• The cheek pads contact your cheeks.
• There is no space around your brow under the inner
Test this by trying to insert your fingers. If the helmet
does not fit snugly, try on a smaller size.
Check your field of vision when trying on a helmet. Some
helmets may obstruct or block your vision when looking left,
right, up, or down.
Always make sure you can see well enough to safely operate
6. Test the helmet fit by placing your hands on each side
of the helmet. While holding your head as motionless as
possible, try rotating your helmet from left to right then
up and down. If you can feel the helmet padding sliding
on your head, it is too big, try a size smaller. You should
feel the helmet move the skin on your head and face as you
try to move the helmet.
* The Sy-Max and CL-Max were designed to be used in the
closed chin bar position, thus be sure all helmet "fitting"
is done while chin bar is in the closed and locked position.
Fasten the retention system (chin strap) as tight as possible
under your jaw without causing pain. There must be no slack
in the strap, and the strap must be tight up against your
jaw. Click to view the helmet retention system.
8. Test the retention system (chin strap)
• Put your hands on the back of the helmet and try
to push the helmet off by rotating it forward.
• Put your hands on the front of the helmet above
your forehead (or on the chin guard) and try to push the
helmet off by rotating backward.
If helmet comes off, try another size or another model or
Repeat steps 3 through 8 until you find a helmet that fits
your head snugly and securely.
Return to Last Page