Bell 4Forty MIPS Helmet
Best versatile protection for dedicated mountain bikers seeking all day comfort.
A reliable, trail-focused lid that balances extended rear coverage with essential rotational impact protection. It prioritizes comfort and convenience with a highly adjustable fit system and a visor that plays nice with both goggles and glasses.
$59.90
at
Bicycle Buys
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Who it's for
- Safety-conscious mountain bikers seeking reliable head protection on technical trails
- Trail riders who frequently switch between goggles and performance eyewear
- High-intensity riders who struggle with sweat dripping onto their lenses
Who should skip it
- Summer cyclists riding in high-humidity regions who prioritize maximum cooling
- Weight-conscious racers looking for the lightest possible climbing gear
- Cyclists who require highly customizable strap positioning for a perfect fit
Performance breakdown
Impact Protection
MIPS integration provides essential rotational energy management for aggressive trail riding.
Fit Adjustability
The oversized dial makes micro-adjustments easy, even while wearing full-finger gloves.
Ventilation Efficiency
Fifteen vents keep airflow consistent during high-output climbs and technical descents.
Sweat Management
Specialized brow padding effectively channels moisture away from your eyes.
Eyewear Integration
The adjustable visor accommodates goggles and glasses without any awkward interference.
Coverage Depth
Extended rear shell design offers extra peace of mind on technical terrain.
Key Specs
Weight
340g
Shell Material
Fusion Polycarbonate
Safety Technology
MIPS
Safety Certification
CE EN1078, CPSC
Number of Vents
15
Fit System
Float Fit
Visor Type
Adjustable
Intended Use
Mountain Biking
Helmet Style
Mountain
Removable Padding
Yes
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