Full-face mountain bike helmet BELL Super Air MIPS Spherical — Size S (52–56 cm), Matte Black

The BELL Super Air MIPS Spherical in Size S (52–56 cm), Matte Black is a full-face mountain bike helmet engineered for aggressive trail, enduro and downhill riding. It features a removable chin bar for quick conversion between full-face and open-face configurations, integrated ventilation channels for airflow management, MIPS rotational protection and Spherical liner technology to reduce rotational forces in a crash. Multi-impact EPS construction and a robust shell design provide coverage and impact management while maintaining a relatively lightweight profile for its class.

Advantages

The helmet combines a convertible design with advanced impact-reduction technologies: MIPS reduces rotational energy transfer, while the Spherical liner adds an additional decoupling layer between the shell and liner. The removable chin bar enables versatility for different ride types without compromising structural integrity when attached. Integrated ventilation and sweat-managing liners improve comfort on long descents and hot climbs. Multi-impact EPS offers sustained protection in repeated low-to-moderate impacts common to trail riding.

Suitable for

• Enduro and downhill mountain biking where face protection is preferred
• Aggressive trail riding and bike park sessions
• Riders who want a convertible helmet to switch between full-face and open-face configurations

When it may not be suitable

This full-face helmet may be heavier and warmer than minimalist trail helmets, making it less suitable for cross-country racing or prolonged climbs where every gram and ventilation matter. Riders who rarely need chin-bar protection or who prioritize minimal weight and maximum cooling might prefer a dedicated open-face helmet.

Key specifications

• Fit range: Small size covering approximately 52–56 cm head circumference
• Protection systems: Rotational protection technology (MIPS) and Spherical liner technology
• Construction: Multi-impact EPS liner with robust outer shell
• Design: Convertible full-face with removable chin bar
• Ventilation: Integrated airflow channels and vents for heat management
• Finish: Matte Black exterior

How to use

Choose the correct size by measuring head circumference at the widest point and aligning it with the 52–56 cm fit range. To switch between full-face and open-face modes, follow the manufacturer's instructions to detach or attach the chin bar securely; ensure all locking mechanisms engage fully before riding. Adjust the retention system and straps so the helmet sits level on the head and the chin strap is snug but comfortable. Regularly inspect the shell, liner, MIPS layer, and attachment points for damage, and replace the helmet after a significant impact or if structural integrity is compromised.

What to consider before purchase

• Confirm the head circumference falls within the 52–56 cm range for proper fit.
• Decide whether a convertible full-face helmet aligns with your typical riding style and climate (weight and ventilation trade-offs).
• Check compatibility with any eyewear or communication mounts you plan to use.

Usage recommendations

Use the helmet in full-face configuration for high-speed descents, technical downhill sections and bike park laps. Switch to open-face when descending technical sections that benefit from additional ventilation and when chin-bar protection is not required. Replace the helmet after any significant crash or if you detect cracks, crushed EPS, or compromised attachment points.