Arai Quantum-X Street Helmet

The Arai Quantum-X is a premium street full-face helmet built on Arai’s PB-SCLC shell and the Variable Axis System (VAS) shield — designed to maximize Glancing Off ability in the critical temple zone. Featuring active QVF/QVR ventilation, FCS® cheek pads, a water-repellent ES Chin Cover, and VAS-MV Pinlock 120 MaxVision shield included in the box, the Quantum-X sets the benchmark for street-focused protection and comfort. Available in 10 colorways: Diamond White, Diamond Black, Red, Silver, Pearl Black, Black Frost, Blue, Wave, White, and Oriental Black Frost. Shell & Protection Peripherally Belted Super Complex Laminate (PB-SCLC) shell — combines multiple materials and techniques for both performance and value Round oval shape — thicker front/rear pads with thinner side pads for riders with slightly wider (less elongated) head shapes VAS shield system lowers the pivot point an average of 24mm, smoothing the shell surface in the temple area and improving Glancing Off ability on impact VAS Shield System VAS-Max Vision (VAS-MV) shield with wide field of view; accepts VAS-MV Pinlock lens Pinlock 120 MaxVision included in the box VAS latch securely holds the shield closed to prevent unexpected opening Larger latch for intuitive, seamless operation including de-mist function Ventilation QVF three-position intake duct for adjustable airflow QVR exhaust duct for efficient heat extraction Side vent functions as an exhaust vent even when the top duct front shutter is closed Water-repellent ES Chin Cover (installed) — smooths airflow, increases exhaust from the mouth area, and reduces wind noise from below; enhances Egg Shape of the shell Interior & Fit FCS® Cheek Pads — contoured shape with multiple foam density layers and a foam “spring” to cradle the face, ease on/off, and block wind noise Soft-brushed, removable liner for easy cleaning and long-ride comfort