A consistent winner on road and mountain bike circuits, the Sweep race helmet continues its legacy of clearing out the competition. Bell's top-of-the-line Twin Axis Gear fit system adjusts vertically and circumferentially to give you a super precise fit. 20 channeled vents actively direct airflow over the head and out the rear for cooling performance. Fusion In-Mold Microshell with In-Mold Bottom Wrap and Internal Reinforcement achieves a feathery curb weight without compromising one bit of durability. All this, plus a bevy of top-level features, makes it easy to see why the Sweep is a racer favorite.