Electronics, Lighting, & GadgetsHRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.
Anybody know what screw size is needed for a Go pro mount? I bought a Go pro mount for my Cygolite Metro 360, and need to screw it to the mount on my Bell MIPS helmet.