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Self installation instructions for
Helmets and Speakers

Determine if ear noise reduction muffs will fit in your helmet.
Helmet Speaker Installation | HJC 2012 Model CL Max ll Modular Helmet Installation | HJC 2002 Model SY Max Modular Snowmobile Helmet Installation
Arai XD4 Helmet Installation | HJC 3/4 Open Face FG-JET Snowmobile Helmet Installation | Shoei Neotec Modular Helmet Installation
Scorpion EXO-900 Furtive Transformer Helmet Installation | 2003 Bombardier Advanced Tec BVS Modular Snowmobile Helmet Installation
Motorcycle Half Helmet Installation | SnoForce Full Face Helmet Installation | Ski-Doo Modular 2 Helmet Installation | Tools Needed to Modify All Helmets

2012 HJC Model CL Max ll Modular Helmet Installation
Transformed into
Quiet Ride Helmet

If you need to see a larger view please click on any picture, use back button on browser to return to this page.

Step 1 - HJC helmet before modification
Step 2 - View of helmet

First two pictures above is a standard 2012 CL Max ll HJC Modular Helmet. Modular helmets are designed to have the front flip up so that the wearer
can have something to drink. When front is flipped up it is easier to put on.

Step 3 - HJC helmet before modification
The CL Max II above is the largest helmet HJC makes in a modular design. It is designed for 4X or 5X users. The base from inside edge to inside edge is 8-11/16” wide. A standard CL Max II HJC helmet is 8” across at the base.
If your head is 6.5” across, forget about measuring around your head,
you probably will need to buy this larger helmet.
Step 4 - View of helmet
Begin the procedure of modifying the Styrofoam insulation by removing the cheek pad. All the HJC helmets I have modified have an unconnected Styrofoam seam between the Styrofoam insulation under the cheek pad and the rest of the Styrofoam insulation on the side and back of the helmet. Turquoise line on picture represents the location of the unconnected seam. The Quiet Ride Ear Muff always ends up resting against this seam. This will become more evident as you study the remaining installation pictures of this CL Max II helmet and other HJC helmet models modified for Quiet Ride Ear Muffs on this web site.

Step 5 - HJC helmet before modification
Remove the ¾” tape around the Quiet Ride ear noise reduction muff in preparation for using the cup for marking the cheek pad
Styrofoam insulation area to cut out.
Step 6 - View of helmet
Unsnap ABS washer and pad from ABS cup by squeezing ABS cup
while pulling on ABS washer.

Step 7 - HJC helmet before modification
Cup and washer seperated
Step 8 - View of helmet
ABS cup placed in position against unconnected side seam of Styrofoam insulation

Step 9 - HJC helmet before modification
More complete picture of line drawn on plastic sheeting over cheek
Styrofoam to be cut out.
Step 10 - View of helmet
Cup in Styrofoam cut out.

Step 11 - HJC helmet before modification
Helmet shell exposed with chin strap slid under bottom side padding.
Step 12 - View of helmet
Quiet Ride Ear Muff put in place to make sure it fits in cut out area.

Step 13 - HJC helmet before modification
Cheek pad before modification.
Step 14 - View of helmet
Back side of cheek pad before modification.

Step 15 - HJC helmet before modification
Picture of modified cheek pad with part of plastic backer removed.
Step 16 - View of helmet
Cheek pad foam cut and fabric cut and ready to fold over modified cheek pad.

Step 17 - HJC helmet before modification
Silicone put on fabric and plastic sheet ready to glue together.
Step 18 - View of helmet
Fabric rolled over end and glued with tape hold fabric in place until glue sets up.

Step 19 - HJC helmet before modification
Back side of cheek pad with scotch tape hold folded over fabric in place.
Step 20 - View of helmet
Top side of modified cheek pad all done and ready to install.

Step 21 - HJC helmet before modification
Bottom side of modified cheek pad ready to install.
Step 22 - View of helmet
Right side cheek pad snapped in place.

Step 23 - HJC helmet before modification
Right side Quiet Ride Ear Muff Velcroed to air bladder.
Step 24 - View of helmet
Right side bladder is Velcroed to inside helmet shell. Air bladder line connected to T which connect air line to left side bladder and air line to mini pump.

Step 25 - HJC helmet before modification
Mini pump connected to right side of helmet with stick on cable clamps with airline going to T just inside right side.
Step 26 - View of helmet
2012 CL Max ll HJC Modular Helmet with Quiet Ride Helmet modifications complete with installation of Quiet Ride Ear Muffs reducing 65% of exterior noise entering ears. This helmet is a 4X size for large head size.


About Quiet Ride Ear Muffs
Benefits of Quiet Ride Ear Muffs
Decibal effect on hearing
Dangers of wearing ear plugs
Tinnitus symptoms
Quiet Ride Ear Muff pad design
Quiet Ride Ear Muff Kit
Helmet speaker installations
Arai XD4 Helmet Installation

Bombardier 2003 Tec BVS Snowmobile Helmet Installation
HJC 3/4 Open Face FG-JET Snowmobile Helmet Installation
HJC 2002 SY Max Modular Snowmobile Helmet Installation
HJC 2012 Model CL Max ll Modular Helmet Installation
Motorcycle half helmet installation
Scorpion EXO-900 Furtive Transformer Helmet Installation
Shoei Neotec Modular Helmet Installation
Ski-Doo Modular 2 Helmet Installation
SnoForce (full face) helmet installation


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