Helmet Sizing Guides

Welcome to MotoHorse, the premier destination for helmet sizing charts! Whether you’re a motorcycle aficionado, a dirtbike enthusiast, a snowmobile adventurer, or a motocross daredevil, we’re here to assist you in finding the ideal helmet fit. Safety is paramount, and our comprehensive collection of sizing charts ensures that you can make an informed choice to protect yourself while enjoying the thrill of the ride.

 

WARNING: Improper usage of helmets or incorrect helmet sizing can lead to injury or death. Please exercise extreme caution when riding and ensure correct helmet fit. These sizing charts are meant to be used as a guide only. It is important to try on your helmet once you receive it to ensure that it fits properly.

 

AFX Adult Helmet Size Chart

 

Hat Size

Inches

Centimeters

2XS*6 3/8 - 6 1/220 1/8 - 20 1/251 - 52
XS*6 2/3 - 6 3/421 7/8 - 21 1/453 - 54
S6 7/8 - 721 5/8 - 2255 - 56
M7 1/8 - 7 1/422 3/8 - 22 3/457 - 58
L7 3/8 - 7 1/223 1/8 - 23 1/259 - 60
XL7 5/8 - 7 3/424 - 24 3/861 - 62
2XL7 7/8 - 824 3/4 - 25 1/863 - 64
3XL8 3/8 - 8 1/225 5/8 - 2665 - 66
4XL8 5/8 - 8 3/426 3/8 - 26 3/467 - 68

AFX Youth Helmet Sizing Chart

 

Hat Size

Inches

Centimeters

S6 - 6 1/819 - 19 3/848 - 49
M6 1/4 - 6 3/819 3/4 - 20 1/850 - 51
L6 1/2 - 6 2/320 1/2 - 20 7/852 - 53

*** CAUTION: Parents/Guardians are responsible for assessing whether a Youth Rider can safely and comfortably wear an Adult-sized helmet due to the resemblances in size and fit between Youth Medium and Youth Large, and Adult XX-Small and X-Small helmets as mentioned above. It is crucial to avoid situations where a Youth Rider wears a helmet that is excessively large or heavy, as this could lead to discomfort or safety issues.

 

AGV 

PISTA GP RR - K7 - K6 S - K3 - K1 S - AX9 (E2206) - X101

Centimeters

XS53 - 54
S55 - 56
M57 - 58
L59 - 60
XL61 - 62
XXL63 - 64

K6 - K5 S

Centimeters

XS53 - 54
S55 - 56
MS57 - 58
ML59 - 60
L60 - 61
XL61 - 62
XXL63 - 64

AX9 (E2205)

Centimeters

XXS51 - 52
XS53 - 54
S55 - 56
MS57 - 58
ML58 - 59
L59 - 60
XL61 - 62
XXL63 - 64
XXXL65 - 66

X3000 - X70

Centimeters

XS53 - 54
S55
MS56
ML57 - 58
L59
XL60 - 61
XXL62 - 63

TOURMODULAR - STREETMODULAR

Centimeters

XS53 - 54
S55 - 56
M57 - 58
L59 - 60
XL61 - 62
XXL63 - 64

SPORTMODULAR

Centimeters

XXS52 - 53
XS53 - 54
S55 - 56
M57 - 58
L58 - 59
XL60 - 61
XXL61 - 62
XXXL63 - 64

K5 JET EVO, IRIDES, ETERES

Centimeters

XS53 - 54
S55 - 56
M57 - 58
L59 - 60
XL61 - 62
XXL63 - 64

K-5 JET

Centimeters

XS53 - 54
S55 - 56
MS57 - 58
ML59 - 60
L60 - 61
XL61 - 62
XXL63 - 64

 

 

ALPINESTARS

 

Inches

Centimeters

XS20.8 - 21.253 - 54
S21.6 - 2255 - 56
M22.4 - 22.857 - 58
L23.2 - 23.659 - 60
XL24 - 24.461 - 62

 

 

 

ARAI

Corsair-X - Interior Lining Thickness

 

HCM (cm)

Lining Code

12 mm

10 mm

7 mm

5 mm

XS53 - 54I OS 
S55 - 56II OSO
M57 - 58IIIOSOO
L59 - 60III OSO
XL61 - 62IV OSO
2XL63 - 64V OS 

NOTE: Standard (S) / Optional (O)

Corsair-X - Cheek Pad Thickness

 

Thicker (mm)

Standard (mm)

Thinner (mm)

XS302520
S302520
M302520
L252015
XL252015
2XL2015-

 

 

ICON

 

Hat Size

Inches

Centimeters

2XS6 3/8 - 6 1/220 1/8 - 20 1/251 - 52
XS6 5/8 - 6 3/420 7/8 - 21 1/453 - 54
S6 7/8 - 720 7/8 - 21 1/455 - 56
M7 1/8 - 7 1/422 3/8 - 22 3/457 - 58
L7 3/8 - 7 1/223 1/8 - 23 1/259 - 60
XL7 5/8 - 7 3/424 - 24 3/861 - 62
2XL7 7/8 - 824 3/4 - 25 1/863 - 64
3XL8 1/8 - 8 1/425 1/2 - 2665 - 66

 

 

MOOSE RACING

 

Hat Size

Inches

Centimeters

XS6 5/8 - 6 3/420 7/8 - 21 1/453 - 54
S6 7/8 - 721 5/8 - 2255 - 56
M7 1/8 - 7 1/422 1/2 - 22 3/457 - 58
L7 3/8 - 7 1/223 1/8 - 23 5/859 - 60
XL7 5/8 - 7 3/424 - 24 1/261 - 62
2XL7 7/8 - 824 3/4 - 25 1/463 - 64

 

 

SENA

 

Centimeters

Inches

S55 - 5621 1/2 - 21 7/8
M57 - 5822 1/4 - 22 5/8
L59 - 6023 - 23 1/2
XL61 - 6223 7/8 - 24 1/4
2XL63 - 6424 5/8 - 25

 

 

THOR Adult Helmet Size Chart

 

Inches

Centimeters

XS20 7/8 - 21 1/453 - 54
S21 3/8 - 2255 - 56
M22 1/8 - 22 7/857 - 58
L23 1/2 - 23 7/859 - 60
XL24 - 24 1/261 - 62
2XL24 5/8 - 25 1/263 - 64
3XL25 5/8 - 2665 - 66
4XL26 3/8 - 26 3/467 - 68

THOR Youth Helmet Size Guide

 

Inches

Centimeters

S18 1/2 - 18 7/847 - 48
M19 1/4 - 19 3/449 - 50
L20 - 20 1/251 - 52

 

 

Z1R Adult Helmet Size Chart

 

Inches

Centimeters

2XS20 1/8 - 20 1/251 - 52
XS20 7/8 - 21 1/453 - 54
S21 5/8 - 2255 - 56
M22 1/2 - 22 3/457 - 58
L23 1/8 - 23 5/859 - 60
XL24 - 24 1/261 - 62
2XL24 3/4 - 25 1/462 - 62
3XL25 1/2 - 2664 - 65
4XL26 1/4 - 26 3/466 - 67

Z1R Youth Helmet Size Chart

 

Inches

Centimeters

S18 1/2 - 18 7/847 - 48
M19 1/4 - 19 3/449 - 50
L20 - 20 1/251 - 52

Z1R Child Helmet Size Chart

 

Inches

Centimeters

S/M18 7/8 - 19 3/449 - 50
L/XL19 7/8 - 20 1/450 - 51