The latest edition of the popular G-Force Revo Helmet features modern graphics patterns in four distinct colors and finishes. The chin bar and crown of the shell show the polished aluminum grills that provide flow to the Siphon12 Ventilation Network, a network of intake and exhaust ports that move air throughout the helmet. Inside, the interior of the Revo features G-Force's Modern Fit padding - a soft-knit, hypoallergenic & flame resistant lining with removable cheek pads. Designed for a deeper inset and more contoured fit to the head, the fit is a promised improvement over older helmet models.
G-Force Helmet Sizing
| Size | X-Small | Small | Medium | Large | X-Large | XX-Large |
|---|---|---|---|---|---|---|
| Measurement(in) | 20-7/8 - 21-1/4 | 21-5/8 - 22 | 22-3/8 - 22-3/4 | 23-1/8 - 23-1/2 | 23-7/8 - 24-1/4 | 24-3/4 - 25-1/8 |
| Metric (cm) | 53 - 54 | 55 - 56 | 57 - 58 | 59 - 60 | 61 - 62 | 63 - 64 |
| Hat Size | 6-5/8, 6-3/4 | 6-7/8, 7 | 7-1/8, 7-1/4 | 7-3/8, 7-1/2 | 7-5/8, 7-3/4 | 7-7/8, 8 |
An effective helmet is one that fits properly. Have an assistant use a measuring tape, or a piece of string to measure the circumference of your head starting at a point approximately one inch above the eyebrows in front, around a point in the back of the head that results in the largest possible measurement, and finally wrapping back to the front. It is a good idea to take several measurements to make sure you have the largest one.