As pioneers of removable chin bar technology, Bell has a legacy to uphold and overcome. They designed the Super Air R from the ground up to push the boundaries of performance and versatility—starting with Spherical Technology. Spherical Technology's Ball-and-Socket design, powered by MIPS, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. Throw in superior ventilation, a total weight that is 22 %, or 144 grams, lighter than its predecessor, and an easy 2-click removable chin bar—and you've got a true all-mountain performer. MIPS SphericalMIPS Spherical is a refinement and evolution of the Multi-Directional Impact Protection System (MIPS). With this sophisticated design, two layers of EPP foam fit together like a ball-and-socket. This system helps protect the brain from rotational energy by allowing up to 10- to 15- millimetes of relative motion between the helmet and head during the first milliseconds of an impact. Overbrow VentilationOverbrow ventilation features intake ports on the brow of the helmet to usher in cool air and push it through the air-channel matrix for full-head ventilation. Float FitBell's most advanced helmet fit system combines comfort and safety in an ultra-lightweight design. Float Fit optimizes the fit of the helmet in 2 ways - in terms of head circumference and vertical adjustability. To reduce weight and simplify usability, the guide arms uniquely enclose the back of the head thanks to "Float" design. This puts the helmet in an ideal position on the head. Simple, lightweight and comfortable.