Helmet BELL Sixer Integrated Mips — MTB helmet, gray, size M (55–59 cm)

The BELL Sixer Integrated Mips is a mountain bike (MTB) helmet designed for trail and enduro riding. Sized for a head circumference of 55–59 cm (M), this gray helmet combines a lightweight shell, internal Integrated Mips rotational-technology system for improved impact management, and a ventilation layout that promotes airflow and comfort during extended off-road use.

Advantages

The helmet integrates rotational-impact protection to reduce rotational forces transferred to the head during oblique impacts while maintaining a low-profile, lightweight construction. An adjustable retention system ensures a secure fit across the specified size range, and engineered ventilation channels help regulate temperature and moisture when riding intensively. The shell and liner materials are chosen to balance protection, durability, and rider comfort.

Suitable for

• Trail riding and enduro routes where added head coverage and impact management are required
• All-day mountain bike rides that demand ventilation and fit adjustability
• Riders seeking a mid-size helmet that fits 55–59 cm head circumference

Key specifications

• Intended use: mountain biking (trail, enduro)
• Fit size: medium (fits head circumference 55–59 cm)
• Rotational protection: Integrated rotational-technology system built into liner
• Shell: lightweight protective outer shell with internal energy-absorbing liner
• Ventilation: multiple airflow channels designed for cooling during off-road riding
• Adjustment: rear retention system for fine fit tuning
• Color: gray

How to use

Place the helmet on the head so the front rim sits just above the eyebrows and the rear covers the base of the skull. Fasten and adjust the chin strap so it is snug but comfortable; you should be able to insert one or two fingers between the strap and your chin. Use the rear retention dial or other fit-adjustment mechanism to center the helmet and eliminate excessive movement. Ensure ventilation channels are unobstructed and check that the Integrated Mips liner is correctly seated and unobstructed by accessories.

Usage recommendations

Inspect the helmet before each ride for visible damage, cracks, or compression in the liner. Replace the helmet after any significant impact even if no damage is visible. Clean with mild soap and water and avoid solvents or high-temperature drying. Store in a cool, dry place away from direct sunlight to preserve materials and protective performance.