Horizon II Arch Modular Motorcycle Helmet
Experience the versatility of the Horizon II modular helmet—your ideal companion for both city streets and open highways. Designed for comfort and safety, it features an upgraded locking system for... Read More
Experience the versatility of the Horizon II modular helmet—your ideal companion for both city streets and open highways. Designed for comfort and safety, it features an upgraded locking system for the 90º flip-up chin guard, ensuring secure and effortless operation.
- SHELL | Meets or exceeds DOT FMVSS 218 and ECE 22.06. ECE “P” and “J” certified as both an open and full face helmet. 1750g,+/-50g. Sizes XS-3XL. Made using Kinetic Polymer Alloy (KPA). 3 Shells. 5 EPS. 7 Liners. 3 Cheek Pads.
- COMFORT | Premium, removable and washable technical fabric liner wicks away moisture to keep you cool and dry, while its hypoallergenic and antibacterial properties ensure long-lasting freshness. 3D laser-cut cheek pads provide a precise fit for all-day comfort without pressure points.
- SHIELD | The optically correct A-Class Polycarbonate face shield delivers exceptional clarity and long-lasting durability. Additional highlights include an anti-scratch, UV-resistant surface, an integrated sunshield with an easy-remove system, and a breath deflector for improved fog control. Includes a Pinlock 70 MaxVision insert.
- SECURITY | A micrometric buckle ensures quick, secure closure, complemented by a reinforced chin strap for added reliability. The helmet features a state-of-the-art multi-density EPS for advanced impact protection, along with Emergency Release Cheek Pads to allow safe and easy removal in case of an accident.
- VENTILATION I Fully adjustable, multi-port, dynamic, flow-through ventilation with ported EPS to keep you cool.
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
