Who it's for

  • Safety-conscious mountain bikers seeking advanced head protection
  • Riders who frequently switch between goggles and performance sunglasses
  • High-intensity trail riders who struggle with sweat-fogged lenses

Who should skip it

  • Cyclists riding in extremely hot climates or high-humidity environments
  • Riders who require precise customization of their helmet strap positioning
  • Long-distance tourers who prioritize maximum interior cushioning for all-day comfort

Performance breakdown

Impact Protection

MIPS integration and extended rear coverage provide robust trail-ready safety.

Excellent

Ventilation Efficiency

Fifteen vents offer reliable airflow for moderate climbing and trail efforts.

Good

Fit Adjustability

The rubberized dial system makes on-the-fly adjustments simple with gloves.

Excellent

Moisture Management

The integrated sweat guide effectively keeps stinging moisture out of eyes.

Excellent

Weight Profile

At 338 grams, it feels substantial but remains comfortable for long rides.

Good

Visor Utility

Adjustable positioning offers practical sun protection without obstructing your trail view.

Excellent

Key Specs

Visor

Yes

Certifications

CE EN1078, U.S. CPSC Safety Standard

Fit System

Float Fit dial

Ventilation

15 vents

Weight

338 grams

Shell Material

Polycarbonate

Safety Technology

MIPS

Helmet Style

Mountain Bike

Intended Use

Trail Riding

Age Group

5 and older

Know before you buy

Still have a question?

Ask Metto anything about the Bell 4Forty Mips Helmet before you decide.

Bell 4Forty Mips Helmet

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Backcountry
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