Not sure what a snake camera is but I just started looking at the X1F that has 2 x 1080p cameras connected to a central unit, looks small enough to install on the bike easily or in the clothing leaving the main unit in a pocket if you really want to.
http://www.szv-sys.com/Products/
Makers web page with all specs : http://www.szv-sys.com/Motorcycle_Camera/
Also other good cameras
Cameras are 2 x 1080p 2.0mp
Another web sit for new X2 version ...