2
Attaching the Helmet D-Ring
The Hybrid Head and Neck Restraint comes with all of the parts to attach the D-rings to the helmet.
Supplied are: (2) 10-32 ½” screws (2) Nut-Washers and (2) D-rings.
To locate the D-rings:
Find the center of the helmet by:
1) Place a piece of masking tape at the center of the rear of the helmet.
(estimate).
2) Mark the center of the tape 1.5” above the bottom of the helmet and
measure from the helmet visor screw to the marked centerline on the
right side of the helmet.
3) Mark the left side of the helmet by using the measurement found in
step 2 for the right side. Measure from the left side visor pivot point
to the mark in the rear of the helmet. At the same distance as on the
right side, mark on the tape on the rear of the helmet vertically, 1.5”
above the bottom ridge of the helmet.
4)You should have two marks on the tape on the back of the helmet. Measure the distance between
the two marks. The center of the two measurements is the center of the helmet.
5) Measure from the new centerline around the helmet 5.5” (+.5”/-0.0”). Mark this spot 1.5” (+.25”/-
0.0”) above the bottom of the helmet. Repeat the procedure on the opposite side of the helmet.
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