Bell stratus mips helmetbuilt with the same core design principles as the pro level zephyr the bell stratus road cycling helmet combines lightweight aero efficiency with cutting edge comfort technologies the shape was refined for all around road performance ventilated for long climbs but still fast for the flats the float fit system offers comfort and security with a streamlined fit and an oversized dial thats easy to adjust with one hand the overbrow ventilation system pulls cool air in th