The 4Forty Air MIPS is packed with pro-level features yet designed with the privateer in mind. Its sleek shell and 3-position visor are not just about looks - they improve air ventilation, help manage sweat and give better goggle compatibility.
Bell's Float Fit system, a built-in Sweat Guide and anti-microbial Ionic+ padding keep you comfortable all day, while integrated MIPS and extended hard-shell coverage help you stay protected in all conditions. Eyewear ports, a Fidlock magnetic buckle and premium straps round out a dependable daily trail helmet.
Features
- Rotational energy management
- MIPS, integrated with the fit system
- 3-position adjustable visor
- Goggle Gripper
- Eyewear ports
- Fidlock magnetic buckle
- No-Twist Tri-Glides
- Sweat Guide
- Ionic+ anti-microbial comfort padding
Specification
- Construction: Fusion In-Mold polycarbonate shell
- Fit system: Float Fit, integrated with MIPS
- Ventilation: 14 vents
- Weight: 360 grams (size M)
- Sizes: S 52-56 cm, M 55-59 cm, L 58-62 cm, XL 61-65 cm (select colours)
- Certifications: CPSC Bicycle, CE EN 1078
4Forty AIR MIPS MTB Helmet
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The 4Forty Air MIPS is packed with pro-level features yet designed with the privateer in mind. Its sleek shell and 3-position visor are not just about looks - they improve air ventilation, help manage sweat and give better goggle compatibility.
Bell's Float Fit system, a built-in Sweat Guide and anti-microbial Ionic+ padding keep you comfortable all day, while integrated MIPS and extended hard-shell coverage help you stay protected in all conditions. Eyewear ports, a Fidlock magnetic buckle and premium straps round out a dependable daily trail helmet.
Features
- Rotational energy management
- MIPS, integrated with the fit system
- 3-position adjustable visor
- Goggle Gripper
- Eyewear ports
- Fidlock magnetic buckle
- No-Twist Tri-Glides
- Sweat Guide
- Ionic+ anti-microbial comfort padding
Specification
- Construction: Fusion In-Mold polycarbonate shell
- Fit system: Float Fit, integrated with MIPS
- Ventilation: 14 vents
- Weight: 360 grams (size M)
- Sizes: S 52-56 cm, M 55-59 cm, L 58-62 cm, XL 61-65 cm (select colours)
- Certifications: CPSC Bicycle, CE EN 1078









