Gmax Youth MX-46 Compound Helmet
Gmax Youth MX-46 Compound Helmet
Available in stock (20)
Riding Styles
Motocross (MX), Off-Road, ATV, UTV/Side-by-SideFeaturing a single Youth shell size, the MX-46Y can be custom fitted from Youth Small up to Youth Large with just padding kit changes (sold separately). This way the helmet can grow as they do. 19 Vents create maximum airflow, keeping you cool and comfortable lap after lap.
The GMAX MX-46 Compound Off-Road Helmet is a lightweight dirt bike helmet built for airflow, comfort, and everyday off-road protection. A DOT-approved shell, 19 vents, removable washable interior, adjustable visor, and vented roost deflector make it a solid choice for motocross and trail riding.
GMAX Helmet Size Charts
To find your approximate helmet size, use a soft sewing tape measure. Start at your forehead about one inch above your eyebrows and measure around the largest portion of the back of your head. If you do not have a soft measuring tape, use a string or phone charging cord, then lay it flat and measure it with a ruler.

GMAX Full Face Helmet Size Chart
| Size | Head Size (CM) | Head Size (IN) |
|---|---|---|
| YS | 49–50 cm | Approx. 19–20 in |
| YM | 51–52 cm | Approx. 20–21 in |
| YL / XS | 53–54 cm | Approx. 21 in |
| S | 55–56 cm | Approx. 21–22 in |
| M | 57–58 cm | Approx. 22 in |
| L | 59–60 cm | Approx. 23 in |
| XL | 61–62 cm | Approx. 24 in |
| 2XL | 63–64 cm | Approx. 24–25 in |
| 3XL | 65–66 cm | Approx. 25 in |
GMAX Modular Helmet Size Chart
| Size | Head Size (CM) | Head Size (IN) |
|---|---|---|
| YS | 49–50 cm | Approx. 19–20 in |
| YM | 51–52 cm | Approx. 20–21 in |
| YL / XS | 53–54 cm | Approx. 21 in |
| S | 55–56 cm | Approx. 21–22 in |
| M | 57–58 cm | Approx. 22 in |
| L | 59–60 cm | Approx. 23 in |
| XL | 61–62 cm | Approx. 24 in |
| 2XL | 63–64 cm | Approx. 24–25 in |
| 3XL | 65–66 cm | Approx. 25 in |
GMAX Off-Road Helmet Size Chart
| Size | Head Size (CM) | Head Size (IN) |
|---|---|---|
| YS | 49–50 cm | Approx. 19–20 in |
| YM | 51–52 cm | Approx. 20–21 in |
| YL / XS | 53–54 cm | Approx. 21 in |
| S | 55–56 cm | Approx. 21–22 in |
| M | 57–58 cm | Approx. 22 in |
| L | 59–60 cm | Approx. 23 in |
| XL | 61–62 cm | Approx. 24 in |
| 2XL | 63–64 cm | Approx. 24–25 in |
| 3XL | 65–66 cm | Approx. 25 in |
GMAX Half Helmet Size Chart
| Size | Head Size (CM) | Head Size (IN) |
|---|---|---|
| YS | 49–50 cm | Approx. 19–20 in |
| YM | 51–52 cm | Approx. 20–21 in |
| YL / XS | 53–54 cm | Approx. 21 in |
| S | 55–56 cm | Approx. 21–22 in |
| M | 57–58 cm | Approx. 22 in |
| L | 59–60 cm | Approx. 23 in |
| XL | 61–62 cm | Approx. 24 in |
| 2XL | 63–64 cm | Approx. 24–25 in |
| 3XL | 65–66 cm | Approx. 25 in |
GMAX Youth Helmet Size Chart
| Size | Head Size (CM) | Head Size (IN) |
|---|---|---|
| YS | 49–50 cm | Approx. 19–20 in |
| YM | 51–52 cm | Approx. 20–21 in |
| YL / XS | 53–54 cm | Approx. 21 in |
| S | 55–56 cm | Approx. 21–22 in |
| M | 57–58 cm | Approx. 22 in |
| L | 59–60 cm | Approx. 23 in |
| XL | 61–62 cm | Approx. 24 in |
| 2XL | 63–64 cm | Approx. 24–25 in |
| 3XL | 65–66 cm | Approx. 25 in |
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