The ultra-lightweight and super-strong high-tensile carbon fibre shell of the Stilo ST6 R Zero Carbon Rally Helmet offers superior head protection while minimising strain on your neck muscles. It also features an integral intercom system, complete with adjustable noise cancelling microphone, high-quality speakers and noise-reducing earmuffs, ensuring crystal-clear communications during your rallying events.Here are the key features and benefits of this high-performance rally helmet:High-tensile carbon fibre shell: Manufactured using PURO technology, this ultra-lightweight shell delivers maximum head protection with reduced neck fatigue, particularly in long events.Up to 10% weight reduction: Compared to the previous ST5 R Zero model, this helmet is lighter by up to 10%, with weights starting from just 1240g (X-Small shell), providing even less strain on your neck muscles and improving overall comfort during long rally events.PURO technology: By eliminating the need for a clear coat, it