"What Our Gearhead® Experts Are Saying: ""This helmet gives me confidence on everything from mellow trail rides to full enduro stages. The removable chin bar is a game changer—breathable when climbing, protective when descending."" We love a helmet that keeps up with our ride style, and the Leatt MTB 4. 0 Enduro Helmet does exactly that. It’s built for the modern trail rider who climbs hard, descends fast, and wants DH-level protection with everyday versatility. Whether we’re lining up for an enduro stage or heading out on a big loop, the 4. 0 has us covered. This convertible helmet features a removable chin bar that attaches quickly without tools, letting us adapt on the fly. It meets ASTM DH certification with the chin bar in place, giving us full-face protection for big lines and bike park laps. 360° Turbine Technology reduces rotational impact forces, while 22 vents and a moisture-wicking liner keep airflow dialed for long climbs and warm weather. Add in adjustable visor clearance for goggles, and it’s ready for everything from technical backcountry rides to shuttle days."