BMX Stem Mount for GoProThis GoPro stem mount is made of aircraft grade aluminum. There is a stainless steel insert in the aluminum to prevent the threads from wearing out. Eliminate the need for cheap, bulky plastic mounts. This mount replaces standard 1 1 8" headset caps. Use the GoPro extensions (supplied with your camera) to get nearly any shot you want. This can be mounted 360 degrees! Available in dark gray color only.