Bike helmet GIRO FIXTURE II by GIRO, universal size 54–61 cm, Matte Black

GIRO FIXTURE II by GIRO is a universal-size bicycle helmet designed for mountain and urban cycling. Sized to fit head circumferences from 54 to 61 cm, the Matte Black helmet combines impact protection, an integrated retention system and ventilation channels to balance safety, fit and airflow for everyday rides, trail use and commuting.

Advantages

The helmet offers a universal adjustable fit that accommodates a wide range of head sizes, supported by an integrated retention system to maintain a secure and stable position during movement. Its protective shell and energy-absorbing liner provide impact protection for typical cycling incidents. Ventilation channels are engineered to promote airflow across the head, helping regulate temperature during active use. The Matte Black finish provides a neutral appearance suitable for different riding styles.

Suitable for

• Mountain biking on non-technical and moderate trails
• Urban cycling and daily commuting
• Leisure rides and fitness cycling
• Riders seeking a single helmet that fits multiple users within the size range

When it may not be suitable

This helmet is designed for general mountain and urban cycling and may not provide the level of protection required for high-speed downhill racing or extreme enduro where full-face protection is recommended. Riders who require specialized features such as integrated eyewear shields, MIPS or other specific rotational-impact technologies should verify whether those systems are included before purchase.

Key specifications

• Fit range: 54–61 cm head circumference
• Finish: Matte Black
• Construction: Hard outer shell with impact-absorbing inner liner
• Retention: Integrated adjustable retention system for secure fit
• Ventilation: Multiple airflow channels for cooling
• Intended use: Mountain and urban cycling, commuting

How to use

Place the helmet level on the head so the front edge sits just above the eyebrows. Adjust the integrated retention system until the helmet feels snug but comfortable and secure. Fasten and adjust the chin strap so it forms a V-shape under each ear and tightens to a comfortable level; the strap should allow one or two fingers between the strap and chin. Regularly inspect the shell and liner for visible damage and replace the helmet after any significant impact or if fit components become compromised.

What to consider before purchase

• Confirm your head circumference falls within the 54–61 cm fit range
• Decide whether you need additional safety systems such as rotational-impact protection
• Check ventilation and weight preferences for long rides or hot-weather use
• Consider compatibility with accessories like lights or helmet-mounted cameras

Usage recommendations

For reliable protection, replace the helmet after any significant impact, store it away from direct sunlight and chemicals, and follow the manufacturer's adjustment instructions to ensure a secure fit during every ride.