HJC RPHA 1N The HJC RPHA 1N is built for race-developed performance, combining FIM-certified protection with advanced aerodynamics and lightweight P.I.M. Plus construction. Designed as a full face helmet, the RPHA 1N focuses on a streamlined, performance-driven ride feel for riders who want a premium HJC lid with track-inspired intent. Key Features Race-developed performance FIM-certified protection Advanced aerodynamics Lightweight P.I.M. Plus construction Full face helmet design Whether you’re pushing pace on track days or prioritizing stability at speed on the street, the RPHA 1N is engineered around aerodynamic efficiency and a focused full-face profile. Available Options Colors: Semi-Flat Black, White Sizes: XX-Small, X-Small, Small, Medium, Large, X-Large, XX-Large Resources An owner’s manual is available for the HJC RPHA 1N and may include helpful information on setup, sizing, care, and helmet features depending on the product. A sizing reference chart is also available to help you select the right size. Shop the HJC RPHA 1N at All American KTM—your nationwide source for HJC helmets and premium riding gear.
