Children's bike helmet BELL SIDETRACK II — size Universal 50–57 cm, Matte Green

BELL SIDETRACK II — size Universal 50–57 cm, Matte Green is a juniors' protective bike helmet designed for children and young riders. The helmet combines a durable outer shell with an internal impact-absorbing liner and an adjustable retention system to provide a secure fit for head circumferences from 50 to 57 cm. It is intended for everyday cycling and recreational riding in urban and park environments, offering a balance of protection, comfort and simple adjustability.

Advantages

The helmet design features a robust outer shell and an internal liner engineered to absorb impact energy, reducing the force transferred to the head. The Universal fit retention system enables quick and precise adjustment to suit growing children or shared use among siblings. Ventilation channels help manage airflow to improve comfort during rides, while the matte green finish provides a neutral, low-glare appearance that resists visible scratches.

Suitable for

• Everyday cycling for children and young riders
• Commuting to school or short urban trips
• Park and recreational rides on paved paths and bike trails
• Shared use by siblings or multiple caregivers due to adjustable sizing

Key specifications

• Fit range: Universal 50–57 cm head circumference
• Construction: Durable outer shell with impact-absorbing internal liner
• Retention: Adjustable retention system for secure fit
• Finish: Matte green exterior
• Target user: Juniors / children and young riders

How to use

Place the helmet level on the head so the front edge sits just above the eyebrows. Adjust the retention system until the helmet feels snug but comfortable; it should not tilt forward or backward when fastened. Fasten and adjust the chin strap so it fits under the chin with enough room to insert one or two fingers between the strap and the chin. Check fit before each ride and re-adjust as the child’s head size changes.

Usage recommendations

Inspect the helmet regularly for visible damage, cracks or significant dents and replace it after any substantial impact. Clean the shell and liner with mild soap and water; avoid solvents or abrasive cleaners. Store the helmet in a dry place away from direct sunlight and extreme temperatures to preserve materials and fit.