The Solid Colors lineup of the Quantum-X offers Arai’s proven performance in a clean, graphic-free finish. Available in Diamond White, Diamond Black, White, Pearl Black, Aluminum Silver, and Fluorescent Yellow, each color is designed for riders who value subtle style, premium comfort, and a tailored fit for rounder head shapes. Arai Quantum-X Helmet – Solid Colors The Arai Quantum-X delivers race-grade protection with a touring-focused fit. Built with the same materials, shield system, and ventilation as the Signet-X, the Quantum-X stands apart with its unique Round Oval internal shape — ideal for riders with rounder head profiles who don’t comfortably fit in typical helmets. Constructed with Arai’s hand-laid PB-SCLC shell and featuring the advanced VAS shield system, the Quantum-X offers exceptional impact management, wind stability, and all-day riding comfort. Whether you're logging miles on the highway or carving through back roads, this helmet is designed for quiet, confidence-inspiring performance. Key Features: PB-SCLC Shell – Peripherally Belted Super Complex Laminate construction for strength and lightweight comfort Snell M2020 & DOT Certified – Meets the highest safety standards for road use VAS Shield System – Lower pivot point improves protection and makes shield changes easier Touring-Tuned Ventilation – Engineered for long-distance riding with quiet, efficient airflow Eco-Pure Interior – Hypoallergenic liner with Facial Contour System (FCS) for a secure, cushioned fit Emergency Release Tabs – Enable safe cheek pad removal by emergency personnel 5mm Peel-Away Layer System – Customize the temple and cheek area for a precise fit Fit Profile: The Quantum-X features a Touring (Round Head) internal shape — designed for riders with a rounder head profile who need more room side-to-side and less front-to-back pressure.
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