Bell 4Forty Air MIPS Helmet
Best versatile protection for dedicated mountain bikers seeking all day comfort.
This trail-ready lid balances rugged protection with thoughtful convenience. It manages sweat and heat effectively while offering a secure, magnetic closure that makes gearing up for a ride feel effortless.
$89.95
at
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Who it's for
- Safety-conscious riders seeking advanced protection without a bulky profile
- Mountain bikers prioritizing convenience and ease of use during transitions
- High-intensity riders who struggle with perspiration fogging their glasses
Who should skip it
- Cyclists in tropical climates who require maximum airflow at low speeds
- Enduro racers who frequently store goggles under their visor
- Riders with rounder head shapes who need a wider internal fit
Performance breakdown
Safety Integration
MIPS technology seamlessly embedded for superior rotational impact protection.
Ventilation Efficiency
Fifteen vents provide consistent airflow for high-intensity trail riding.
Fit Customization
Float Fit system offers precise, stable adjustments for varied head shapes.
Moisture Management
Ionic+ padding and sweat guides keep perspiration away from your eyes.
Usability Features
Magnetic buckle and eyewear ports make on-trail adjustments effortless.
Weight Profile
Solid construction, though slightly heavier than top-tier carbon racing models.
Key Specs
Shell Material
Fusion Polycarbonate
Weight
360 grams
Number of Vents
15
Safety Technology
MIPS
Safety Certification
US CPSC
Fit System
Float Fit
Visor Type
3-position
Closure Type
Fidlock magnetic buckle
Removable Padding
Yes
Eyewear Compatible
Yes
Know before you buy
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