Bell 4Forty Air Mips Helmet
Best breathable protection for dedicated mountain bike enthusiasts.
A versatile trail and enduro lid that balances essential safety tech with rider-focused convenience. It keeps sweat out of your eyes and eyewear securely stowed, making it a reliable choice for long days on technical terrain.
$89.97
at
Steep and Cheap
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Who it's for
- Safety-conscious riders seeking advanced protection without excessive bulk
- Mountain bikers riding in hot climates or high-intensity conditions
- Trail riders who value convenience and quick transitions
Who should skip it
- Enduro racers who frequently switch between goggles and sunglasses
- Aggressive downhill riders requiring maximum occipital protection
- Daily commuters or high-mileage riders prioritizing long-term component longevity
Performance breakdown
Safety Integration
MIPS technology provides essential rotational impact protection for aggressive trail riding.
Buckle Convenience
Fidlock magnetic buckle makes securing your helmet effortless, even with gloves.
Eyewear Compatibility
Dedicated notches and rear grippers keep glasses and goggles perfectly secure.
Fit Customization
Float Fit system offers precise, dial-based adjustments for a stable ride.
Moisture Management
Integrated sweat guide effectively channels perspiration away from your eyes.
Weight Profile
Solid construction balances durability with a weight that won't cause fatigue.
Key Specs
Shell Material
Polycarbonate
Impact Management
MIPS
Fit Adjustment
Float Fit with Fidlock buckle
Visor
3-position adjustable
Weight
360 grams
Intended Use
Trail, Enduro
Safety Certification
U.S. CPSC Safety Standard for Bicycle Helmets
Warranty
1 year
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