| ARAI Helmet Size Chart from Sportbiketrackgear.com | ||||||
| SIZE | Measurement | HELMET MODEL | Shell Shape | |||
| XXS | (49-50 CM) | RX-7 CORSAIR | Intermediate Oval | |||
| XXS | (51-52 CM) | QUANTUM 2 | Round Oval | |||
| XS | (53-54 CM) | PROFILE | Long Oval | |||
| S | (55-56 CM) | VECTOR | Intermediate Oval | |||
| M | (57-58 CM) | XD | Intermediate Oval | |||
| L | (59-60 CM) | PRO SERIES | Intermediate Oval | |||
| XL | (61-62 CM) | CLASSIC SERIES | Intermediate Oval | |||
| XXL | (63-64 CM) | SZ/m | Intermediate Oval | |||
| XXXL | (65-66 CM) | SZ/RAM II | Intermediate Oval | |||
| THE ROLE OF HEAD SHAPE IN FITTING AN ARAI HELMET: | ||||||
| As said, the shape of the head – the relationship between length and width – is as important as head size in properly fitting a helmet. For this reason Arai offers more than one interior shell shape, as follows: | ||||||
| Intermediate Oval | Round Oval | Long Oval Shape | ||||
| This fit package comes in our RX-7 CORSAIR model and the Vector, which begins the shift from oblong towards round. A little shorter front-to-back and a little wider side-to-side than the Long Oval shell shape (Profile). This shell shape fits most everyone well. | This fit package is offered in the QUANTUM 2 helmet. . Even a little shorter front-to-back and a little wider side-to-side. | On this end of the scale, we have the new Arai Profile model, offering additional forehead room for those who find that most helmets have pressure points in the forehead. Very long front-to-back, very narrow side-to-side. | ||||
The Measurement
Measuring your head is next, the starting point for the sizing procedure. Due to varying shapes, heads that are apparently the same size when measured by a tape may not necessarily fit the same size helmet.
You are trying to find the longest distance around your head, at eyebrow level, above the ears.
It may require several different attempts to establish the longest possible measurement, but it is absolutely essential to getting the right fit. NOTE: Be sure to use an accurate measuring device, like a cloth tape measure that shows inches (in) and centimeters (cm). You can get one cheap at any fabric store.
Trying on the helmet
Snug vs. Loose
A helmet that slips on easily may offer an initial impression of
comfort and proper fit, but after time can become too loose and
move around on your head, allowing more wind noise to get in
and also causing more discomfort and fatigue as you struggle to
keep your head from getting buffeted in the wind. Like a
properly-fit pair of shoes, a helmet needs to settle in over time,
so be sure to consider this “relaxing” of the interior when buying
your new helmet.
Your initial fitting goal, then, should be for a snug fit.
Your initial fitting goal, then, should be for a snug fit.
