X Force Solid Full Face MX Motorcycle Helmet
The next evolution in full-face motocross and off-road motorcycle helmets, the LS2 X-Force was developed to set a new standard of performance. LS2’s X-Force is made from LS2’s proprietary High... Read More
The next evolution in full-face motocross and off-road motorcycle helmets, the LS2 X-Force was developed to set a new standard of performance. LS2’s X-Force is made from LS2’s proprietary High Performance Fiberglass Composite, (HPFC), offering robust, unrivaled durability, and high performance energy management. The 3D laser cut comfort padding is fully removable and washable and keeps the rider fresh and comfortable whether racing or spending a day on the trails.? The carbon fiber shell, multi-density EPS, and the high performance, technical fabric liner work in conjunction to meet or exceed the ECE 22.06 rotational energy standards, using LS2's proprietary Advanced Rotational Energy Management (AREM) system.? AREM technology has been proven to outperform third party, mechanical rotational energy devices by as much as 25% under ECE guidelines.?14 vent ports channeled through the multi-density, high-performance energy absorbing EPS liner, allows for the ultimate in cooling airflow. The LS2 Helmets X-Force truly does set a new standard of performance in the world of MX and off-road racing. Meets both ECE 22.06 and DOT FMVSS 218 certification standards. Intermediate oval fit.
- AREM technology meets or exceeds ECE 22.06 Rotational Energy Management specs
- Large eye port accommodates most popular goggles
- 14 vent ports for the ultimate in cooling ventilation
- Lightweight, High Performance Fiberglass Composite (HPFC) shell
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
