The MIPS system found in Bell's Super 2R MIPS Helmet is designed to mimic what your brain and skull do in an impact, namely allow a little bit of movement in order to protect the more important component. In your brain's case, there's a fluid layer between the brain and the skull that acts as a buffer. In the Super 2R, it's a floating harness that allows independent movement of the shell and liner. Taking inspiration from motorcycle helmets, the Super 2R features a detachable chinbar designed to be attached quickly and easily when you get to the summit and start descending or at the start of a timed Enduro stage, and then removed for transition. You'll also find a break away cameralight mount integrated into the helmet so that neither your camera nor your helmet get too broken in a crash, and so that it doesn't alter crash kinematics and cause more injury.