Open Face MTB Helmets

Bell open face MTB helmets: built for riders who go further

The open face MTB helmet is the choice of riders who want serious protection without the weight or heat penalty of a full face. Bell Helmets has spent decades developing trail and enduro helmets for athletes who push their limits on technical terrain — and that development has produced a range of open face MTB helmets that combine Spherical Technology™, MIPS® and purpose-built ventilation into helmets that perform as hard as the riders who wear them.

The Bell open face MTB range

Bell's open face mountain bike helmet range covers every level of trail and enduro riding, from fast and light XC-inspired helmets to enduro-ready models built for the rowdiest terrain.

• Super Air R Spherical: the flagship open face trail helmet from Bell. Spherical Technology™ powered by MIPS® delivers the most advanced rotational protection in the open face range, combined with a ventilation system designed to keep riders cool across long, demanding stages.
• Sixer Mips: a trail-focused open face helmet with MIPS® protection, a low-profile construction and a precise fit system. Built for riders who want capable protection for every trail session without unnecessary weight.
• 4Forty Air Mips: designed for enduro and aggressive trail riding. A reinforced chin bar, extended rear coverage and MIPS® protection deliver a higher level of security for riders who push into more demanding territory.
• 4Forty Mips: versatile open face coverage for trail and all-mountain riding. Solid MIPS® protection, effective ventilation and a fit system that stays locked in across varied terrain.

What to look for in a trail MTB helmet

The best open face MTB helmet is the one that fits your discipline and the way you ride. Bell designs its trail helmet range around four key factors:

• Protection level: MIPS® reduces rotational forces across the range. Spherical Technology™ takes this further for riders who want the highest level of rotational protection available in an open face helmet.
• Ventilation: on long trail climbs and enduro stages, airflow is critical. Bell's open face helmets are designed with channelled ventilation systems that move air efficiently without compromising structure.
• Coverage: extended rear and side coverage on enduro-focused models like the 4Forty Air Mips provides additional protection for more aggressive terrain.
• Fit precision: Bell's dial-adjust fit systems keep the helmet stable and secure across all trail conditions, from smooth flow trails to technical rock gardens.

Find your Bell trail MTB helmet

Whether you're building fitness on your local loop or racing enduro stages, Bell has an open face MTB helmet designed for your terrain and your ambitions. Explore the range and ride with the protection competition has shaped.