AFX FX-21 Manuel Du Propriétaire page 6

CHIN STRAP RETENTION SYSTEM: DOUBLE D-RING
IMPORTANT: Make sure that you always fasten the chinstrap securely
beneath your chin when wearing your helmet. Before you ride test to
see that the helmet cannot be removed from your head when fastened
in that manner.
The helmet must not be worn or fastened so loose that it can rotate freely
front or back so that it could be removed from your head with the
chinstrap correctly fastened.
To securely fasten the double D-ring retention system, thread the end of
the chin strap through the D-rings only as shown in the diagram below.
The strap must be threaded through both d-rings, then separate the
d-rings and thread the strap back between both rings. If done correctly
the end of the strap will be away from your face and outside of the
portion of the strap that touches your neck.
Please refer to the diagrams to make sure you have done up the strap
correctly, and as always do not ride with the chinstrap not done up in
the correct illustrated manner.
If this helmet is equipped with a strap keeper, either a snap or a strap
band you can use it to secure the loose end of the strap to keep it from
flapping while riding. This strap keeper is not part of the retention system
and is only designed to keep the extra length of strap in place. Do not
use it as a substitute for the helmets double d-ring retention system.
To remove the chinstrap, reverse the fastening process as shown in the
diagram below. Always make sure to inspect your chinstrap either
before or after every ride, if your chinstrap shows any signs of wear the
helmet should be replaced immediately. Never ride with a helmet that
has worn, damaged, or missing chinstraps. Make no modification to the
chinstrap in anyway.
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