Bell 4Forty MIPS MTB Helmet

MIPS Evolve is a safety layer inside the helmet designed to reduce rotational forces during certain impacts. It allows the helmet to slide slightly relative to your head, which helps protect your brain from the damaging energy often associated with angled crashes.

Yes, the 4Forty features an adjustable visor that can be moved upward to accommodate goggles when you aren't wearing them. It is designed specifically to integrate with standard MTB goggles and eyewear.

The Sweat Guide padding is designed to pull moisture away from your brow and direct it toward the side of your head rather than letting it drip directly into your eyes. It is a simple, effective solution for keeping your vision clear during high-exertion rides.

The 4Forty features an extended rear shell design that sits lower on the back of your head than a standard road or cross-country helmet. This extra coverage provides more peace of mind when navigating technical, rocky, or steep terrain.

The Float Fit system uses a dial at the back of the helmet that you can easily operate with one hand, even while wearing gloves. It allows you to quickly fine-tune the tension around your head for a secure, comfortable fit without needing to take the helmet off.

This specific model is sized for a circumference of 55-59 cm. Because of the adjustable Float Fit system, it offers a good range of customization within that bracket, but you should measure your head circumference carefully before purchasing to ensure it falls within that range.