Bell GTX3 Carbon helmet size chart

Head circumference (cm)

Head circumference (inch)

Hat size

XS

57-

22.44-

7 1/8-

S

57

22.44

7 1/8

S/M

58

22.83

7 1/4

M

59

23.23

7 3/8

M/L

60

23.62

7 1/2

L

61

24.02

7 5/8

XL

61+

24.02+

7 5/8+