LIGHTWEIGHT INTERNAL POLYCARBONATE ROLL CAGE FUSION, & IN-MOLDING POLYCARBONATE SHELL - A process pioneered by Bell bonds the helmet’s outer shell to the EPS foam liner to create a sturdier helmet.

MIPS-EQUIPPED - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts

FLOAT FIT & NO-TWIST TRI-GLIDES - A minimalist, lightweight fit system with an easy-to-turn rubber over-molded dial for adjustments (integrated with MIPS). Quick-adjust fasteners that help keep straps flat and properly positioned

SWEAT GUIDE & OVERBROW VENTILATION - Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear. Overbrow 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

SPECIFICATIONS - Small (52-56 cm), Medium (55-59 cm), and Large (58-62 cm) Sizes. Important: always take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that does not fit can be dangerous; 18 vents.

BUILT TO PERFORM. Built with the same core design principles as the pro-level Z20, the Stratus 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 - and the integrated Float Fit system offers comfort and security with a streamlined fit and an oversized dial that’s easy to adjust with one hand. The Overbrow Ventilation system pulls cool air in through the front and pushes it through an air-channel matrix to reduce overheating. And thanks to the adjustable No-Twist Tri-Glides, the straps stay flat and properly positioned no matter how hard you’re hammering. This model also includes MIPS (Multi-Directional Impact Protection System) for added protection in certain types of impacts.