Bell 4Forty Air MIPS Helmet

The Bell 4Forty Air uses MIPS Evolve, which is integrated directly into the helmet's fit system. This design reduces the bulk and complexity of a separate plastic slip-plane liner while still providing the same rotational impact protection.

Yes, the helmet features dedicated eyewear storage notches. These are designed to hold your glasses securely in place on the helmet shell when you need to take them off during a climb or break.

The Fidlock buckle is designed specifically for one-handed operation. The magnetic mechanism snaps together automatically and slides open easily, making it much simpler to operate with gloves than a traditional pinch-style buckle.

The Sweat Guide pad is positioned along the brow line to channel moisture away from your forehead and direct it toward the sides of your face, rather than letting it drip down into your eyes or onto your eyewear.

Absolutely. The 3-position adjustable visor allows you to push the visor up high enough to stow goggles underneath when you aren't using them, and the shell shape is compatible with most standard mountain bike goggle straps.

Yes, the Ionic+ padding is removable. It is also treated to be quick-drying and odor-fighting, which helps keep the helmet fresh even after long, sweaty rides.