Bicycle helmet AUTHOR Pulse LED X8 — size 52–58 cm, yellow-neon (model 171)

AUTHOR Pulse LED X8 is a bicycle helmet designed for adult riders with head sizes 52–58 cm. The model 171 features a yellow‑neon outer shell and integrated LED lighting to improve visibility in low‑light conditions. The helmet uses an in‑mold construction with internal ventilation channels and an adjustable retention system to balance protection, comfort and airflow during urban commuting or recreational cycling.

Advantages

The integrated LED module increases side and rear visibility without adding significant weight. The adjustable fit system ensures a secure hold across the 52–58 cm range, while the ventilation channels promote steady airflow to reduce heat buildup. The neon yellow shell provides high daytime visibility and the in‑mold construction maintains a streamlined profile for everyday cycling.

Suitable for

• Urban commuting and city cycling
• Recreational and fitness rides
• Riding at dawn, dusk or in low‑light conditions
• Short to medium distance bicycle trips

Key specifications

• Size range: 52–58 cm head circumference
• Shell color: yellow‑neon
• Integrated LED lighting for increased visibility
• Adjustable rear retention system for secure fit
• Ventilation channels for airflow and cooling
• In‑mold construction combining shell and EPS liner
• Lightweight design suitable for daily use

How to use

Position the helmet level on the head so the front edge sits just above the eyebrows. Adjust the rear retention dial until the helmet fits securely without excessive pressure. Fasten and adjust the chin straps so they form a V shape under each ear and allow one or two fingers between the strap and the chin. Activate the LED module according to the built‑in control (refer to supplied user leaflet for battery and operation details). Regularly inspect the helmet for cracks or damage and replace it after any significant impact or if fit and performance are compromised.

Usage recommendations

For optimal safety, combine the helmet with visible clothing and additional lights on the bicycle when riding in low light. Replace the helmet after five years of regular use or immediately after a crash that causes noticeable damage. Store in a dry place away from direct sunlight and chemicals to preserve shell integrity and LED function.