Bell Helmets Size Chart

Moto-9 Carbon Flex Factory Helmet
Helmets
Shell Size Circumference (IN) Circumference (CM) Hat Size (IN)
XS 21 1/4" - 21 5/8" 54-55 6 3/4" - 6 7/8"
S 21 5/8" - 22" 55-56 6 7/8" - 7"
M 22 1/2" - 22 3/4" 57-58 7 1/8" - 7 1/4"
L 22 3/4" - 23 1/4" 58-59 7 1/4" - 7 3/8"
XL 23 5/8" - 24" 60-61 7 1/2" - 7 5/8"
XXL 24 1/2" - 24 3/4" 62-63 7 3/4" - 7 7/8"

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.