MD-74 Solid Helmets (2026)
Hit the trails in comfort and safety in the stylish new MD-74 modular ADV helmet from GMAX. MD-74 checks all the boxes for adventure and snow riders who prefer the... Read More
Hit the trails in comfort and safety in the stylish new MD-74 modular ADV helmet from GMAX. MD-74 checks all the boxes for adventure and snow riders who prefer the convenience of flip-up modular helmets. Features like drop down inner shield, removable neck curtain and breath box, 3 closeable vents, and available dual pane and electric shields make for an outstanding package for snowy adventures. Ride with or without the peak visor, neck curtain and breath box, and switch to a single pane shield, and your MD-74 is ready for warm weather.
Features
- DOT Certified
- Comfortable premium interior
- Front, top, and rear ventilation
- Removable peak visor
- Speaker pockets / Coms-ready
- AntiFog Drop-down inner shield (colors available)
- Available single pane, dual pane, and electric shields (colors available)
How to measure
Measure the circumference of your head one inch above the eyebrows and across the largest portion of the back of the head, then find the matching range. The crown should apply snug, even pressure and cheek pads should be snug (they break in with use). If the helmet moves on your head it is too loose; if it causes pain it is too small. If between sizes, size down.
GMAX size chart
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| YL / XS | 53-54 | 20 7/8 - 21 1/4 |
| S | 55-56 | 21 5/8 - 22 |
| M | 57-58 | 22 7/16 - 22 13/16 |
| L | 59-60 | 23 1/4 - 23 5/8 |
| XL | 61-62 | 24 - 24 3/8 |
| 2XL | 63-64 | 24 13/16 - 25 |
| 3XL | 65-66 | 25 5/8 - 26 |
| 4XL | 67-68 | 26 3/8 - 26 3/4 |
Youth sizes
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| YS | 49-50 | 19 5/16 - 19 11/16 |
| YM (= XXS) | 51-52 | 20 1/16 - 20 7/16 |
| YL (= XS) | 53-54 | 20 7/8 - 21 1/4 |
One universal GMAX chart covers the whole lineup (street, dual-sport, snow). Youth and adult small sizes share shells and are dual-labeled: a Youth Large is the same fit as an adult XS.
Manufacturer sizing data · verified July 8, 2026