Bell 4Forty MIPS Mountain Bike Helmet for Adults

The Bell brand offers a wide range of helmet options for various cycling disciplines, including Mountain, Road & Gravel, BMX, and Kids & Youth. The product descriptions for the Sixer MIPS, 4Forty, Spark, and Nomad helmets provide detailed information about their features and specifications.

Regarding the Sixer MIPS helmet, it features a Fusion In-Mold Polycarbonate Shell, which is a process pioneered by Bell that bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. The helmet is also MIPS-equipped, meaning it has the Multi-Directional Impact Protection System, a leading slip-plane technology designed to reduce rotational forces that can result from certain impacts. The helmet's fit system is the Float Fit Race, a state-of-the-art lightweight system that integrates seamlessly with MIPS, offering an easy-to-turn dial, wide-range vertical adjustment, and padded width-adjustable cradles.

The 4Forty helmet boasts a Fusion In-Mold Polycarbonate Shell and a Float Fit, a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments, which is also integrated with MIPS.

The Spark helmet features a Fusion In-Mold Polycarbonate Shell and an Ergo Fit, a sleek, easy-to-use dial system for one-handed adjustments, integrated with the MIPS layer.

The Nomad helmet, on the other hand, has a Fusion In-Mold Polycarbonate Shell and an Ergo Fit, a sleek, easy-to-use dial system for one-handed adjustments.

All the helmets share common features, such as the Sweat Guide pad design, which pulls moisture away from the brow pad and away from eyewear, and the No-Twist Tri-Glides, which are quick-adjust fasteners that help keep the straps flat and properly positioned.

Additionally, the Goggleguide Adjustable Visor System, which accommodates both goggles and glasses and works with or without the visor attached, is a feature found across the helmet lineup.

The weight of the helmets varies, with the Sixer MIPS weighing 410 grams (size M), the 4Forty 380 grams (size M), the Spark 365 grams (size UA), and the Nomad 333 grams.

Overall, the Bell brand offers a range of high-performance, feature-rich helmets catering to different cycling disciplines and rider preferences.

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