Advant X Carbon Solid Modular Motorcycle Helmet
The LS2 Advant X Carbon fiber 180-degree, flip-front takes the modular motorcycle helmet to the stratosphere. The Carbon Fiber shell, including a CARBON CHIN BAR, bring a new level of... Read More
The LS2 Advant X Carbon fiber 180-degree, flip-front takes the modular motorcycle helmet to the stratosphere. The Carbon Fiber shell, including a CARBON CHIN BAR, bring a new level of safety and performance to modular helmets. The Advant X Carbon Fiber meets or exceeds the ECE 22.06 rotational energy management criteria using LS2’s proprietary Advanced Rotational Energy Management (AREM) technology. ECE homologated as both an open face and full-face (ECE P/J rated), this helmet offers amazing flexibility and is certified to be used as a full-face or open face helmet. The LS2 proprietary deceptively simple design of the 180-degree flip front, carbon fiber, chin bar allows it to operate on a single axis pivot; a true engineering marvel. This allows the chin bar to rotate all the way back, and rest behind the head to avoid catching the wind at highway speeds and offers a much superior balance compared to traditional modulars. Washable, removable liner includes 3D laser cut foam cheek pads with our top of the line foam for superior comfort with no hotspots. PINLOCK fog control lens INCLUDED. Meets or exceeds ECE 22.06 and DOT standards.
- Integrated LS24X comm system by CARDO allows pairing with up to 4 riders, voice activated commands, pairing with phone, music, GPS and MORE!
- Uber light Carbon Fiber shell and chin bar for a new level of energy managing performance
- 180-degree, single pivot chin bar rotates up and completely out of the way for superior balance
- Meets or exceeds the ECE 22.06 rotational energy management criteria using Advanced Rotational Energy Management technology developed by LS2
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