Protective BMX helmet GIRO Quarter FS, size S (51–55 cm), matte chalk

The GIRO Quarter FS in matte chalk, size S (51–55 cm), is a protective BMX helmet designed for skatepark, street and urban freestyle riding. It features a low-profile shell and multi-impact construction typical for BMX helmets, providing compact coverage and durable protection for riders who prefer a smaller, close-fitting helmet. The helmet's shape and ventilation balance impact protection with comfort for sessions that include jumps, grinds and technical maneuvers.

Advantages

The low-profile shell reduces bulk and improves sightlines while maintaining multi-impact protection for repeated use typical of BMX and skatepark riding. The helmet's close fit in size S (51–55 cm) offers secure retention and stability during dynamic movements. Ventilation ports are integrated into the shell to help manage heat and airflow without compromising structural integrity. The matte chalk finish provides a neutral, low-gloss appearance suitable for a variety of riding styles and apparel.

Suitable for

• Skatepark sessions and ramp riding
• Street and urban freestyle cycling
• BMX training and trick practice
• Commutes where a compact protective helmet is preferred

Key specifications

• Fit size: S, designed for 51–55 cm head circumference
• Shell: low-profile hard shell construction
• Impact protection: multi-impact design suited to BMX use
• Finish: matte chalk color
• Ventilation: integrated vents for airflow and heat management
• Retention: adjustable straps and secure fit system for stability

How to use

Place the helmet on the head so it sits level and covers the forehead without tilting backward or forward. Adjust the side straps and buckle to achieve a snug fit; the helmet should not move significantly when you shake your head. Fine-tune the retention system (if present) to ensure the helmet remains stable during jumps and tricks. Inspect the helmet before each session for cracks, significant dents or compromised straps, and replace the helmet if it shows damage from a substantial impact.

Usage recommendations

For optimal protection, use this GIRO Quarter FS helmet consistently during skatepark and freestyle sessions, follow fit and adjustment guidelines, and replace the helmet after a major impact or if structural damage is visible. Store the helmet away from direct sunlight and extreme heat to preserve the shell and padding.