The Abus AirBreaker helmet features the innovative Multi Speed design, offering maximum aerodynamics and optimal ventilation. It's a lightweight, solid in-mold racing bike helmet with a durable EPS and PC shell combination. The Zoom Ace adjustment system ensures an individual fit with a precise adjustment dial. For safety at high speeds, it provides good head protection thanks to the ActiCage Lite, a structural reinforcement within the EPS for optimal stability. The innovative Multi Speed Design with a honeycomb structure precisely controls airflow, providing optimum aerodynamics on fast, flat stages and optimal ventilation on slow, mountainous stages. This unisex helmet for adults weighs 210g and comes in size M, suitable for head circumferences of 52-58 cm. ABUS stands for safe, reliable, and stable products, setting standards in home protection, object security, and mobile security.