Lightest Open Face Bell Scout Air The Bell Scout Air is about as stripped back as a motorcycle helmet can legally be. In fact, the lightweight tri-composite shell weighs in at a mere 900g. The Scout Air takes after the half-shell lids in the US, those synonymous with big V-twin riders.

Lightest Open-Face Motorcycle Helmet Shark S-Drak 2 Carbon Helmet If you want an open-face helmet for comfort and convenience, the Shark S-Drak 2 weighs a mere 2.89 pounds and has versatile, removable components for riding in different kinds of weather.

The X-Lite X-803 Ultra Carbon is the lightest helmet in our rankings.