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Helmet Size Charts
Find the brand you want, measure your noggin, click
your back button to return to the helmet page, then make your size selection.
Click Here To Return to previous page
MEASUREMENT:
Measuring the head is a starting point for the entire 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. The circumference of the head should be measured at
a point approximately one inch above the eyebrows in front and at a point in the back of
the head that results in the largest possible measurement. Take several measurements to
make sure you have the largest one, so we can send you a helmet that fits the first time. Metric
conversions at bottom.
HELMET SIZING CHART
Be sure to measure around the largest diameter of your
head, including the tips of your ears to ensure a proper fit. Remember, size conversions
are approximate. |
| Bell
Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6-5/8
thru 6-7/8 |
20-7/8 thru 21-5/8 |
Small |
| 7
thru 7-1/4 |
22 thru 22-7/8 |
Medium |
| 7-1/4
thru 7-1/2 |
22-5/8 thru 23-1/4 |
Large |
| 7-1/2
thru 7-3/4 |
23-5/8 thru 24-1/2 |
X-Large |
| Bieffe
Helmet Sizing |
| HAT SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6-5/8 thru 6-3/4 |
20 thru 20 1/2 |
X-Small |
| 6-7/8 thru 7 |
21-1/2 thru 22 |
Small |
| 7-1/8 thru 7-1/4 |
22-1/2 thru 22-3/4 |
Medium |
| 7-3/8 thru 7-1/2 |
23 1/4 thru 23 1/2 |
Large |
| 7-5/8 thru 7-3/4 |
24 thru 24-1/2 |
X-Large |
| G-Max Helmet Sizing |
CIRCUMFERENCE
(Metric/Inches) |
HELMET
LETTER SIZE |
SIZE |
| 50 cm |
19 11/16" |
Youth S/M |
6-1/4" |
| 51 cm |
20 1/16" |
Youth S/M |
6-3/8" |
| 52 cm |
20 7/16" |
Youth L/XL |
6-1/2" |
| 53 cm |
20 7/8" |
Youth L/XL |
6-5/8" |
| 54 cm |
21 1/4" |
XS |
6-3/4" |
| 55 cm |
21 5/8" |
XS |
6-7/8" |
| 56 cm |
22" |
S |
7" |
| 57 cm |
22 7/16" |
S |
7-1/8" |
| 58 cm |
22 13/16" |
M |
7-1/4" |
| 59 cm |
23 1/4" |
M |
7-3/8" |
| 60 cm |
23-5/8" |
L |
7-1/2" |
| 61 cm |
24" |
L |
7-5/8" |
| 62 cm |
24-3/8" |
XL |
7-3/4" |
| 63 cm |
24-13/16" |
XL |
7-7/8" |
| 64 cm |
25-3/16" |
XXL |
8" |
| 65 cm |
25-5/8" |
XXL |
8-1/8" |
| 66 cm |
26" |
* XXXL |
8 1/4" |
| 67 cm |
26 3/8" |
* XXXL |
8 3/8" |
| * Revised sizing for improved fit.
Available on GM8X Helmets. |
| Fox
Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6-1/2
thru 6-5/8 |
20-1/2 thru 20-7/8 |
X-Small |
| 6-3/4
thru 6-7/8 |
21-1/4 thru 21-7/8 |
Small |
| 7
thru 7-1/8 |
22 thru 22-3/8 |
Medium |
| 7-1/4
thru 7-3/8 |
23-1/8 thru 23-1/4 |
Large |
| 7-1/2
thru 7-5/8 |
23-1/4 thru 24-3/4 |
X-Large |
| 7-3/4
thru 7-7/8 |
24-3/4 thru 25-1/4 |
XX-Large |
| Joe Rocket Lightspeed Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6 3/4
thru 6 7/8 |
21 thru 21 5/8 |
Small |
| 7
thru 7 1/8 |
21 3/4 thru 22 3/8 |
Medium |
| 7
1/4 thru 7 3/8 |
22 1/2 thru 23 1/8 |
Large |
| 7
1/2 thru 7 5/8 |
23 1/4 thru 24 |
X-Large |
| 7
3/4 thru 7 7/8 |
24 1/8 thru 24 7/8 |
XX-Large |
| 8
thru 8 1/8 |
25 thru 25 5/8 |
XXX-Large |
| Pro
Rider Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6
thru 6-3/8 |
19-3/8 thru 20-3/8 |
XXS thru XS |
| 6-3/8
thru 7-3/8 |
20-3/8 thru 22-7/8 |
SM thru MD |
| 7-3/8
thru 7-3/4 |
22-7/8 thru 23-7/8 |
LG thru XL |
| SnoRider Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6
thru 6-3/8 |
19-1/2 thru 20-7/8 |
X-Small |
| 6-1/2
thru 6-7/8 |
21 thru 21-1/2 |
Small |
| 6-7/8
thru 7-1/8 |
21-5/8 thru 22-1/4 |
Medium |
| 7-1/8
thru 7-3/8 |
22-3/8 thru 23 |
Large |
| 7-3/8
thru 7-5/8 |
23-1/8 thru 24 |
X-Large |
| 7-5/8 thru 8 |
24-1/8 thru 25 |
XX-Large |
| Troy Lee
Helmet Sizing |
| HAT
SIZE |
MEASURED SIZE |
HELMET SIZE |
| 6-1/2
thru 6-7/8 |
21 thru 22 |
X-Small to Small |
| 7-
7-3/8 |
22.4 thru 23.7 |
Medium to Large |
| 7-1/2
thru 7-3/4 |
23.7 thru 24.7 |
X-Large to XX-Large |
| ZEUS Helmet Sizing |
| HAT SIZE |
MEASURED SIZE - METRIC |
HELMET SIZE |
| 6-1/4 thru 6-3/8 |
51-52 |
XX-Small |
| 6-1/2 thru 6-5/8 |
53-54 |
X-Small |
| 6-3/4 thru 6-7/8 |
55-56 |
Small |
| 7 thru 7-1/8 |
57-58 |
Medium |
| 7-1/4 thru 7-3/8 |
59-60 |
Large |
| 7-1/2 thru 7-5/8 |
61-62 |
X-Large |
| 7-3/4 thru 7-7/8 |
63-64 |
XX-Large |
| 8 thru 8-1/8 |
65-66 |
XX-Large |
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| Metric Conversion Information |
Head
Circumference
Inches |
Universal
Helmet
Size |
Hat
Size |
Head
Circumference
Metric |
19 5/8 - 20 1/8
20 1/4 - 20 7/8
21 - 21 5/8
21 3/4 - 22 3/8
22 1/2 - 23 1/8
23 1/4 - 24
24 1/8 - 24 7/8
25 - 25 5/8 |
XX-Small
X-Small
Small
Medium
Large
XLarge
XXLarge
XXXLarge
|
6 - 6 3/8
6 1/2 - 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 - 8 1/8
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50 - 51
52 - 53
54 - 55
56 - 57
58 - 59
60 - 61
62 - 63
64 - 65 |
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