Arai Classic-V Helmet
Features Features intermediate oval shape which fits the majority of head shapes in the North American markets Peripherally belted, complex laminate construction shell, providing tremendous strength in a small and... Read More
Features
- Features intermediate oval shape which fits the majority of head shapes in the North American markets
- Peripherally belted, complex laminate construction shell, providing tremendous strength in a small and lightweight package, adding reinforcement where needed without increased weight or shell thickness
- Hidden Ventilation — Fresh air enters the three forehead channels, flowing over the head and escapes through the hidden multistage channel and out the Venturi exhaust, pulling away heat
- Interior Integrated Intake Vents — Three intake channels incorporated into the forehead area, allowing fresh air to enter the helmet and flow more easily to the crown
- Air flowing from the intake channels into the crown, escaping through three holes in the EPS liner and pulling heat with it into the hidden multi-staged air channel
- Rear Venturi Ports — Once air enters the hidden multi-stage air channel in the EPS liner, it is then pulled out by the low pressure created by the Venturi exhaust manifold
- One-Piece, Multi-Density EPS Liner — The multi-density EPS beads are molded into a single liner, maximizing energy absorption requirements as needed in each area of the helmet
- EPS liner tuning maximizes impact energy absorption ability while maintaining a uniform and compact helmet
- Features a wide, stitched faux leather trim set in a recess channel in the shell for a clean, finished look
- Completing the old-school look is the faux-stitched leather goggle strap holder that helps keep your goggle straps from sliding up the helmet when riding
How to measure
Measure the circumference of your head in cm across the forehead, above the eyes and ears and over the small bump at the back of the head — read the size where the tape joins. Focus on head size (crown fit) first, then fine-tune with cheek pads. Arai stresses the chart is a STARTING POINT: the best fit comes from trying on Arai's different interior fit shapes.
Arai Helmets size chart
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| XS | 53-54 | 20 7/8 - 21 1/4 |
| S | 55-56 | 21 5/8 - 22 |
| M | 57-58 | 22 1/2 - 22 7/8 |
| L | 59-60 | 23 1/4 - 23 5/8 |
| XL | 61-62 | 24 - 24 3/8 |
| 2XL | 63-64 | 24 3/4 - 25 1/4 |
| 3XL | 65-66 | 25 5/8 - 26 |
One head-circumference chart covers all current Arai models — what differs per model is interior SHAPE, not size: Intermediate Oval (Corsair-X, Contour-X, Defiant-X, Regent-X, XD-4/XD-5, VX-Pro4 — fits most North American heads), Round Oval (Quantum-X), Long Oval (Signet-X). Try the shape that matches your head. Not every model runs every size (e.g. Corsair-X standard range XS–2XL). Arai publishes CM ONLY on every official arm — inch values here are exact conversions (×2.54, nearest 1/8″), not manufacturer-printed; retailer inch charts differ because they round differently. Labels normalized (XXL/XXXL → 2XL/3XL). Extreme sizes (3XS 49-50, 2XS 51-52) are select-model/special-order and not on the current chart. No youth motorcycle chart exists (the CK-6 is a karting helmet). Verified from araiamericas.com chart image + whyarai.co.uk 2026-07-13.
Manufacturer sizing data · verified July 13, 2026