HELMET SIZING CHARTS

ARIA HELMETS

Arai Helmet Size Charts: Find Your Size in Arai Helmets
 

Size Centimeter Inches Hat Size
XSm 53-54 21 1/4 6 5/8 - 6 3/4
Sm 55-56 21 5/8 6 7/8 - 7
Md 57-58 21 3/8 7 1/8 - 7 1/4
Lg 59-60 23 1/8 7 3/8 - 7 1/2
XL 61-62 23 1/2 7 5/8 - 7 3/4
XXL 63-64 24 1/4 7 7/8 - 8
XXXL 65-66 24 5/8 8 3/4 - 8 1/2

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Motorcycle Helmet Size Chart with Cross-Reference Guide*
 

Not sure of your size? Simply measure around your head, about one inch over your eyebrows, and just over your ears.
Measure a few times to get a consistent size.

 

Circumference CM Hat Size *Bell Arai **Bieffe O'Neal Shoei/HJC KBC/MSR/Answer
20 1/2"   52 6 1/2"   XS        
20 7/8"   53 6 5/8"   XS        
21 1/8"     6 3/8-1/2"         XX-S XX-S
21 1/4"   54 6 3/4" XS SM XS   XS XS
21 5/8"   55 6 7/8" XS SM SM   SM SM
22"   56 7" SM MD SM SM   SM
22 3/8"   57 7 1/8" SM MD MD   MD MD
22 3/4"   58 7 1/4" MD LG MD MD   MD
23 1/8"   59 7 3/8" LG LG LG   LG LG
23 1/2"   60 7 1/2" LG LG/XL LG/XL LG XL XL
24"   61 7 5/8" XL XL XL   XL/XXL XL
24 3/8"   62 7 3/4" XL XL/XXL XL XL   24 1/4+=XXL
24 3/4"   63 7 7/8" XXL XXL XXL      
*Bell also breaks down sizes as follows: ***Shoei breaks down sizes as follows:
21 1/2-22 1/8"=SM 6 7/8-7=SM
22 1/4-22 7/8"=MD 7 1/8-7 1/4=MD
23     -23 5/8"=LG 7 3/8-7 1/2=LG
23 3/4-24 1/2"=XL 7 5/8-7 3/4=XL
7 7/8-8=XXL
**Bieffe also breaks down sizes as follows:
21 1/4"-21 1/2"=XS
21 5/8"-22 1/4"=SM
22 3/8"-23 1/8"=MD
23 1/4-23 7/8"=LG
24- 24 5/8"=XL
24 3/4-25"=XXL

**Please note that the sizing chart is a general guide and is not absolute.
 

 

 

 

 

 

 

 

 

 

 

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