Six Key Steps In Determining Proper Helmet Fit.
- Measurement
- Try-on
- Horizontal and Vertical Movement Check
- Retention Check
- Pressure Point Check
- Confirming Proper Fit
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.
A small metal tape measure, or a cloth tape may be used to make your initial measurement.
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.
PLEASE NOTE THAT THIS IS A ROUGH GUIDE AND NOT EXACT. THE SHAPE OF YOUR HEAD IS AS IMPORTANT AS THE MEASUREMENT WHICH MAY AFFECT FINAL FIT!
Size Cross Reference
BELL MOTORCYCLE HELMET SIZING CHART
| YOUTH HELMET SIZE |
HEAD CIRC. (IN) |
HEAD CIRC. (CM) |
HAT SIZE |
|
|
|
|
| Youth SM |
19 1/2" - 20" |
50cm - 51cm |
5 7/8 - 6 1/8 |
|
|
|
|
| Youth MD |
20" - 20 1/2" |
51cm - 52cm |
6 1/8 - 6 3/8 |
|
|
|
|
| Youth LG |
20 1/2" - 21" |
52cm - 53cm |
6 3/8 - 6 5/8 |
SCX JR. Helmet S/M 50cm-51cm & L/XL 52cm-53cm.
| ADULT HELMET SIZE |
HEAD CIRC. (IN) |
HEAD CIRC. (CM) |
HAT SIZE |
|
|
|
|
| XS |
20 7/8" - 21 1/4" |
53cm - 54cm |
6 5/8 - 6 3/4 |
|
|
|
|
| SM |
21 5/8" - 22" |
55cm - 56cm |
6 7/8 - 7 |
|
|
|
|
| MD |
22 3/8" - 22 3/4" |
57cm - 58cm |
7 1/8 - 7 1/4 |
|
|
|
|
| LG |
23 1/4" - 23 5/8" |
59cm - 60cm |
7 3/8 - 7 1/2 |
|
|
|
|
| XL |
24" - 24 3/8" |
61cm - 62cm |
7 5/8 - 7 3/4 |
|
|
|
|
| XXL |
24 3/4" - 25 1/4" |
63cm - 64cm |
7 7/8 - 8 |
BELL AUTO HELMET SIZING CHART
| ADULT HELMET SIZE |
HEAD CIRC. (IN) |
HEAD CIRC. (CM) |
HAT SIZE |
|
|
|
|
| XXS |
21 1/4" - 21 5/8 |
54cm - 55cm |
6 3/4 - 6 7/8 |
|
|
|
|
| XS |
22 |
56cm |
7 |
|
|
|
|
| SM |
22 3/8" |
57cm |
7 1/8 |
|
|
|
|
| MD |
22 3/4" - 23 1/8" |
58cm - 59cm |
7 1/4 - 7 3/8 |
|
|
|
|
| LG |
23 1/2" - 23 7/8" |
60cm - 61cm |
7 1/2 - 7 5/8 |
|
|
|
|
| XL |
24 1/4" |
62cm |
7 3/4 |
|
|
|
|
| M3 XTRA 8 |
25 1/8" - 25 1/2" |
64cm - 65cm |
8 |
|
|
|
|
| M3 XTRA 8 1/4 |
25 7/8" - 26 1/4" |
66cm - 67cm |
8 1/4 |
|
|
|
|
| M3 XTRA 8 1/2 |
26 3/8" |
68cm |
8 1/2 |
BELL / GIRO BICYCLE HELMET SIZING CHART
|
|
|
| ADULT HELMET SIZE |
HEAD CIRC. (IN) |
HEAD CIRC. (CM) |
| S |
20" - 21 3/4" |
51cm - 55cm |
| M |
21 3/4" - 23 1/4" |
55cm - 59cm |
| L |
23 1/4" - 24 3/4" |
59cm - 63cm |
|
|
|
| UNIVERSAL |
|
|
| Triton |
22 3/4" - 25 1/2" |
58cm - 65cm |
| Men |
21 1/4" - 24" |
54cm - 61cm |
| Women |
19 3/4" - 22 1/2" |
50cm - 57cm |
| Kids |
19 3/4" - 22 1/2" |
50cm - 57cm |
|
|
|
| CHILDREN |
|
|
| Amigo |
19 3/4" - 22" |
50cm - 55cm |
| Boomerang |
18 1/2" - 19 3/4" |
47cm - 50cm |
| Lil Bell s/m |
19 3/4" - 20 1/2" |
50cm - 52cm |
| Lil Bell m/l |
20" - 21 1/4" |
51cm - 54cm |
|
|
|
| FULL FACE |
|
|
| S |
20 3/4" - 21 3/4" |
53cm - 55cm |
| M |
22" - 22 3/4" |
56cm - 58cm |
| L |
23 1/4" - 24" |
59cm - 61cm |
Bieffe Sizing Chart
|
20 ¼ - 20 7/8 |
21 - 21 5/8 |
21 ¾ - 22 3/8 |
22 ½ - 23 1/8 |
23 ¼ - 24 |
24 1/8 - 24 7/8 |
|
XS |
SM |
MD |
LG |
XL |
XXL | |
HJC Sizing Chart
|
20 ¼ |
21 - 21 5/8 |
21 ¾ - 22 3/8 |
22 ½ - 23 1/8 |
23 ¼ - 24 |
24 1/8 - 24 7/8 |
25 - 25 5/8 |
|
XS |
SM |
MD |
LG |
XL |
XXL |
XXXL | |
HJC Youth Sizing Chart
|
19 - 19 ½ |
20 - 20 ½ |
21 - 21 ½ |
|
Youth SM |
Youth MD |
Youth LG | |
KBC Sizing Chart
|
20 ¼ - 20 7/8 |
21 - 21 5/8 |
21 ¾ - 22 3/8 |
22 ½ - 23 1/8 |
23 ¼ - 24 |
24 1/8 - 24 7/8 |
|
XS |
SM |
MD |
LG |
XL |
XXL | |
Pyrotect Sizing Chart
|
20 1/8 - 20 5/8 |
20 ¾ - 21 3/8 |
21 ½ - 22 |
22 1/8 - 22 ¾ |
22 7/8 - 23 ½ |
23 5/8 - 24 3/8 |
24 ½ - 25 |
|
XXS |
XS |
SM |
MD |
LG |
XL |
XXL | |
Shoei Sizing Chart
|
20 1/8 - 20 5/8 |
20 ¾ - 21 3/8 |
21 ½ - 22 |
22 1/8 - 22 ¾ |
22 7/8 - 23 ½ |
23 5/8 - 24 3/8 |
24 ½ - 25 |
25 1/8 - 25 7/8 |
|
XXS |
XS |
SM |
MD |
LG |
XL |
XXL |
XXXL | |
Zamp Sizing Chart
|
20 1/8 - 20 5/8 |
20 ¾ - 21 3/8 |
21 ½ - 22 |
22 1/8 - 22 ¾ |
22 7/8 - 23 ½ |
23 5/8 - 24 3/8 |
24 ½ - 25 |
|
XXS |
XS |
SM |
MD |
LG |
XL |
XXL | |
One Industries Sizing Chart
| ADULT HELMET SIZE |
HEAD CIRC. (IN) |
HEAD CIRC. (CM) |
HAT SIZE |
|
|
|
|
| XS |
20 7/8" - 21 1/4" |
53cm - 54cm |
6 5/8 - 6 3/4 |
|
|
|
|
| SM |
21 3/8" - 22" |
55cm - 56cm |
6 7/8 - 7 |
|
|
|
|
| MD |
22 1/8" - 22 7/8" |
57cm - 58cm |
7 1/8 - 7 1/4 |
|
|
|
|
| LG |
23 1/8" - 23 7/8" |
59cm - 60cm |
7 3/8 - 7 1/2 |
|
|
|
|
| XL |
24" - 24 1/2" |
61cm - 62cm |
7 5/8 - 7 3/4 |
|
|
|
|
| XXL |
24 5/8" - 25 1/2" |
63cm - 64cm |
7 7/8 - 8 | back to top
Once you've determined your preliminary tape measurement, select the helmet that is closest in hat size to the tape measurement. If it is between sizes, round-up to the next largest size. Now try on your helmet.
 |
If you are not familiar with helmets, you should use these instructions on the proper procedure for putting one on:
A. Grasp the helmet by the chin straps, with the front of the helmet facing you and the top of the helmet facing down.
B. Place your thumbs on the inside surface of the straps and balance the helmet with your index fingers. </ | |
