Coz Roar Motocross Motorcycle Helmet
The COZ full-face off-road and MX helmet defies logic. Lightweight Kinetic Polymer Alloy (KPA) shell offers energy managing flexibility and offers pro-level, ECE 22.06 standard’s rotational energy management using LS2’s... Read More
The COZ full-face off-road and MX helmet defies logic. Lightweight Kinetic Polymer Alloy (KPA) shell offers energy managing flexibility and offers pro-level, ECE 22.06 standard’s rotational energy management using LS2’s proprietary Advanced Rotational Energy Management (AREM) technology. The wide-eye port accommodates most popular goggles, including those offered by LS2. Multi-port ventilation keeps the rider cool. American-style shell design. Double-D chin strap for security. Intermediate Oval. Out performance other full-face MX helmets costing twice the price. Meets or exceeds Race ready, the COZ meets or exceeds both ECE 22.06 and DOT certification standards.
- Meets or exceeds the ECE 22.06 rotational energy management criteria using Advanced Rotational Energy Management technology developed by LS2
- High tech, lightweight, Kinetic Polymer Alloy shell with large eyeport
- Accommodates most popular brands of goggles
- Race ready, the COZ meets or exceeds both ECE 22.06 and DOT certification standards
How to measure
Measure the circumference of your head with a tape measure, starting above the ear, circling completely around about half an inch above the eyebrows and across the fullest part of the back of the head. Measure several times for accuracy. If you fall between two sizes, choose the larger; the helmet should be as snug as possible without causing pain.
LS2 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 |
| 4XL | 67-68 | 26 3/8 - 26 3/4 |
Youth sizes
| Chart | Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|---|
| Rapid Mini (kids street full-face) | S | 47-48 | 18 1/2 - 19 |
| Rapid Mini (kids street full-face) | M | 49-50 | 19 1/2 - 19 3/4 |
| Rapid Mini (kids street full-face) | L | 51-52 | 20 - 20 1/2 |
| Gate Youth (youth MX) | S | 51-52 | 20 - 20 1/2 |
| Gate Youth (youth MX) | M | 53-54 | 20 7/8 - 21 1/4 |
| Gate Youth (youth MX) | L | 55-56 | 21 5/8 - 22 |
One official LS2 USA adult chart (XS-4XL) for all adult models; different head shapes may need a size up/down in a given model, and models use multiple shell sizes. Two model-specific youth charts (Rapid Mini street, Gate Youth MX) — they differ, use the right one per model.
Manufacturer sizing data · verified July 8, 2026
