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Purpose-built for the street. A new benchmark in comfort, quiet, stability and ventilation. Arai applied the same tireless 24-7 focus devoted to our race helmets to designing it, refining and adapting proven concepts to a new purpose. On the rounder end of the head shape spectrum, the Quantum series has always been the "go-to" helmet of choice. The new Quantum-X brings that shape back in a feature rich package.

Sizes: XS - XXL

WARNING: Fluorescent and/or bright finishes fade over time and exposure to sunlight. This is normal and is not covered by warranty.

Quantum-X styles

White - Front


MSRP: $679.95

Black - Front

Pearl Black

MSRP: $679.95

Dia White - Front

Diamond White

MSRP: $699.95

Dia Black - Front

Diamond Black

MSRP: $699.95

Al Silver - Front

Aluminum Silver

MSRP: $699.95

Black Frost - Front

Black Frost

MSRP: $699.95

Fl Yellow - Front

Fluorescent Yellow

MSRP: $709.95

Box Red - Front

Box Red

MSRP: $829.95

Box Yellow - Front

Box Yellow

MSRP: $829.95

Box Blue - Front

Box Blue

MSRP: $829.95

Box Black Frost - Front

Box Black Frost

MSRP: $829.95

Shade White - Front

Shade White

MSRP: $829.95

Shade Sand - Front

Shade Sand

MSRP: $829.95

Sting Red Frost - Front

Sting Red Frost

MSRP: $829.95

Sting Blue - Front

Sting Blue

MSRP: $829.95

Sting Black Frost - Front

Sting Black Frost

MSRP: $829.95

Comp Red - Front

Competition Red

MSRP: $829.95

Comp Blue - Front

Competition Blue

MSRP: $829.95

Comp Black Frost - Front

Competition Black Frost

MSRP: $829.95

QX Oriental Black Frost - Front

Oriental Black Frost

MSRP: $829.95

QX Style Black - Front

Style Black

MSRP: $829.95

QX Style Pink - Front

Style Pink

MSRP: $829.95