HJC Adult RPHA 1N Red Bull Austin GP Street Helmet. Designed developed after several years of focused efforts and crucial feedback from top world class athletes in MotoGP. HJC's top engineers went to work and created a race-bred helmet that is truly worthy of top race circuits around the world.
The RPHA 1 is the very same model used by HJC's world-class athletes in both MotoGP and WorldSBK, and HJC is set to finally launch it into full production with FIM homologation (FRHPhe-01)-the safety certification. Plus (Premium Integrated Matrix Plus) Reinforcement Materials, Including Carbon and Carbon-Glass Hybrid Fabric.
5 intake, 4 exhaust vents. "ACS" Advanced Channeling Ventilation System.
Easy Attachment System Allows Tool-Less Shield Replacement. SilverCoolTM Enhanced Moisture Wicking and Quick Dry. Removable, Washable Crown and Cheek Pads. Includes: Breath Deflector, Chin Curtain, Tear-Offs, Pinlock Lens, Clear Extended Aero-Spoiler. Speaker Pockets for Bluetooth Communication.
With a tape level, measure the widest point of your head, approximately 1 inch above your eyebrows.