FLEX Slim Universal Flexible Motorcycle Helmet Chin MountThe FLEX Slim is the most innovative, most universal, and most versatile helmet chin mount ever made. We started with the Original Universal Chin Mount, and it was good, but it didn't reach compatibility levels that we wanted. So we innovated even further. This led to the creation of the FLEX Mount series. FLEX Mounts are built with the highest quality steel as a core skeleton. That is then coated in a soft, vibration dampening, layer of silicone.