Bell Bike 4Forty MIPS Bicycle Helmets

The Bell 4Forty Mips is an all-mountain mountain bike helmet that combines extended trail coverage, Mips rotational impact protection, and advanced comfort features for riders tackling a wide range of trail conditions.

Best for

Trail and all-mountain mountain bikers.
Riders looking for Mips rotational impact protection.
Cyclists who ride in varying terrain and weather conditions.
Mountain bikers who frequently use goggles.
Riders seeking extended rear head coverage for additional protection.

Not ideal for

Downhill riders requiring a full-face helmet.
Road cyclists looking for a road-specific aerodynamic helmet.
Bike park riders needing full-face protection.
Children under the age range covered by the helmet certification.

What this product does

The 4Forty Mips protects the rider's head during mountain bike rides by combining an impact-absorbing helmet structure with Mips Evolve technology, which is designed to help reduce rotational forces from certain angled impacts. The helmet also features an adjustable fit system, extensive ventilation, moisture-management technology, and trail-specific features such as goggle compatibility and an adjustable visor.

Compatibility

Designed for mountain biking and trail riding.
Compatible with mountain bike goggles.
Compatible with standard cycling sunglasses.
Suitable for trail, all-mountain, and recreational mountain biking.
Fits riders within the manufacturer's specified size range.

Benefits

Mips Evolve technology helps address rotational impact forces from certain crashes.
Extended rear coverage provides additional protection for the back of the head.
Float Fit™ retention system allows quick and precise fit adjustments.
Generous ventilation helps improve airflow during long rides.
Sweat Guide™ system channels sweat away from the eyes and eyewear.
Adjustable visor provides sun protection and space for goggle storage.
Goggle Gripper keeps goggle straps securely positioned.
No-Twist Tri-Glides™ help maintain proper strap alignment.
Full hard-shell construction increases durability.
Lightweight design helps reduce rider fatigue.

Technical Specs

Product Type: Mountain bike helmet.
Recommended Use: Trail and all-mountain riding.
Protection Technology: Mips® Evolve.
Fit System: Float Fit™ retention system.
Visor: Adjustable visor.
Ventilation: Large airflow vents throughout the shell.
Sweat Management: Sweat Guide™ brow pad system.
Strap System: No-Twist Tri-Glides™.
Goggle Compatibility: Integrated Goggle Gripper.
Shell Construction: Full hard-shell design.
Weight: Approximately 380 g (Size Medium).
Safety Certification: Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.

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