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Helmet Express understands how important a good fit is. Please refer to the charts below to help you pick the correct size. Our knowledgeable staff is always ready to assist you, so feel free to give us a call.

HELMET SIZING
To determine helmet size, carefully measure your head with a cloth tape measure. For greatest accuracy, someone else other than yourself should take measurements, and the tape measure should be held snugly around your head. Place the measuring tape COMPLETELY around the WIDEST portion of your head, approximately 1" above the eyebrows and just above the ears and at the point on the back of your head that will give you the largest reading. It is best to take several measurements and to take the largest to determine head size. Find your head size in the chart below and then order proper helmet size.

20 1/4" to 20 7/8" X-SM (6-1/2" to 6-5/8")
21" to 21 5/8" SM (6-3/4" to 6-7/8")
21 3/4" to 22 3/8" MED (7" to 7-1/8")
22 1/2 " to 23 1/8" LG (7-1/4" to 7-3/8")
23 1/4 " to 24 X-LG (7-1/2" to 7-5/8")
24 1/8 " to 24 7/8" XX-LG (7-3/4" to 7-7/8")
25" to 25 5/8" XXX-LG (8" to 8-1/8")

IMPORTANT:
If your head size falls between two head sizes listed, order the smaller helmet size as the helmet must fit snugly.

Click Here to learn how to measure your head properly.
HELMET SIZE CROSS REFERENCE CHART
BRAND 2X-Small X-Small Small Medium Large X-Large 2X-Large 3X-Large
Shoei Metric 51-52cm 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm
Inches 21 1/8" 21 1/4" 21 5/8" 22 3/8" 23 1/8" 23 1/2" 24 1/4"
Arai Metric 51-52cm 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm 65-66cm
Inches 21 1/8" 21 1/4" 21 5/8" 22 3/8" 23 1/8" 23 1/2" 24 1/4" 24 5/8"
HJC Metric 51-52cm 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm 65-66cm
Inches 21 1/8" 21 1/4" 21 5/8" 22 3/8" 23 1/8" 23 1/2" 24 1/4" 24 5/8"
Vega Metric 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm 65-66cm
Inches 21 1/4" 21 5/8" 22 3/8" 23 1/8" 23 1/2" 24 1/4" 24 5/8"
Zox Metric 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm 65-66cm
Hat Size 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"
Nolan Metric 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm
Inches 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"
Zamp Metric 54-55cm 56-57cm 58-59cm 60-61cm 62-63cm 64-65cm
Inches 21 1/4" 22" 22 7/8" 23 5/8" 24 3/8" 24 3/4"
KBC Metric 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm
Inches 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"
Bell Metric 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm
Inches 20 7/8" - 21 1/4" 21 5/8" - 22" 22 3/8" - 22 3/4" 23 1/4" - 23 5/8" 24" - 24 3/8" 24 3/4" - 25 1/4"
Vemar Metric 52cm 53-54cm 55-56cm 57-58cm 59-60cm 61-62cm 63-64cm 65-66cm
 

 


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