QUALITY CONSTRUCTION, great ventilation, superior fit and sublime comfort. Little wonder then that Cal Crutchlow relies on these qualities in a helmet when he races.

Originally built for the racetrack, the RPHA 11 is HJC’s premium sport helmet, designed with an aerodynamic shell structure for extreme performance at maximum speeds.

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The Premium Integrated Matrix (P.I.M Plus) shell composition provides enhanced shock-resistant performance and a more comfortable and lightweight helmet using reinforcement materials that include carbon and carbon-glass hybrid fabric. The features cater to sport riders with an enlarged eye port for an increased view in a tucked position and an outstanding airflow ventilation system. Additional safety features include reflective patches on the rear neck area and an emergency release cheek pad system for safe and quick helmet removal in an emergency situation.

The RHPA II meets or exceeds ECE 22.05 approved, with testing including energy attenuation, penetration resistance, chin strap structural integrity and labelling requirements for on-road motorcycle helmets. Reinforcement materials, including Carbon and Carbon-Glass Hybrid fabric, provide enhanced shock-resistant performance for a more comfortable and lighter helmet.

With the advanced anti-bacterial fabric providing enhanced moisture-wicking and quick-drying function, the helmet features a removable interior and comes complete with glasses grooves to accommodate riders who wear glasses. The 3D shield is prepared with Pinlock pins, and Pinlock Anti-fog inserts can be purchased separately from authorised dealers. The enhanced centre clip dual locking shield system is ideal for racing conditions, and the quick-release shield system offers a simple and secure tool-less system to quickly remove the shield from the helmet. An additional 2D dark smoke shield is included.

The HJC RPHA 11 Crutchlow Streamline MC4H helmet retails at £499.99 and is available in sizes XS-XL.