I have a Drift 170(non HD), which I have been using for years now and despite it's limitations,it serves my purposes well. May I suggest a little tip for anyone thinking of getting themselves a Drift helmet camera? Go to the Drift Innovations website, or even flea-Bay and get yourself a spare universal mounting clip (see photo). These little sods have a habit of breaking the side tangs that lock the camera into the various mounts provided. They also have a particularly nasty habit of snapping off just before going out for the sort of ride you really want to record too.