Nexx X.D1 Dual Sport Helmet Installation
The pictures below show the modifications necessary to NEXX model X.D1
The right and left side chin strap metal connections were ground off and relocated down and forward from their original location. This was necessary to eliminate the chin strap from running thru the earmuff pocket area underneath the ANC earmuff.
Note in the picture above the air bladder is not centered in the earmuff pocket. It is installed in the forward lower portion of the earmuff pocket. The reason for installing the air bladder in this location is to allow the air bladder to apply more air pressure to the lower area of the earmuff as you mandible (jaw bone) surface below the ear is an irregular non flat surface compared the head bone area above you ear. As a result a little more pressure needs to be applied below the ear to maintain a proper seal around ears.
The chin straps on both sides of the helmet had to be shortened due to relocation of the metal chin strap connectors lower on each side of the helmet. I used very small pop rivets to shorten chin straps.
The foam left and right side padding had to be cut out and reshaped to mold around earmuffs. The extra cloth was glued onto vinyl on back side of side pads using Goop Silicone product. Originally there were three snap buttons to connect foam side pads to Styrofoam side padding. Two of the snap buttons had to be removed in the process of reshaping and cutting foam padding so it would fit around earmuffs. It was necessary to stick some loop Velcro in two spots on back side of foam side pads and hook Velcro on corresponding locations Styrofoam side padding.