Deep gloss black with a subtle metallic flake gives this Arai Quantum-X in Diamond Black a rich, premium presence that shifts beautifully under light, revealing fine sparkle within its otherwise stealthy finish. The smooth R75 shell profile flows cleanly from chin bar to rear exhaust, while the sculpted vent layout and refined contours maintain a balanced, aerodynamic silhouette without unnecessary graphics. Diamond Black delivers a timeless, high-end look that pairs effortlessly with any riding style, offering understated sophistication backed by unmistakable Arai craftsmanship. Brand new and never worn (new old stock), this Quantum-X is an ideal choice for riders who appreciate classic gloss black elevated with subtle depth and detail.

The Quantum-X features a PB-ScLc shell, VAS Shield Mechanism, VAS Shield Demist Latch, VAS Max Vision BV Shield, and Pinlock Lens Insert. Interior and fit components include FCS® Cheek Pad Design, 5mm Peel-Off Layer, Emergency Release Cheek Pads, and a Removable Neck Roll Pad. Ventilation and structural elements consist of Brow Vents, Cowl Exhaust Vent, QVF Series Top Vents, QVR Series Top Vents, Chin Vent Shutter, ES Chin Curtain, Pull Down Spoiler, and the Outward-Flaring Hyper-Ridge.

SNELL & DOT certified.

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Disclaimer:  Some stock photos may have been used. Please double-check sizing, model details, and compatibility before purchasing.