Originally Posted by
CliffordK
I suppose one question that I've run into. They list the helmets in the size:
- Small (S): 51-55 cm / 20-21.6 in
- Medium to Large (M-L): 54-61 cm / 21.3-24 in
- Extra Large (XL): 61-65 cm / 24-25.6 in
I've tried to measure my head, and my measurements vary between 23 1/2" and 24".
That puts me right on the division between ML & XL.
I'm leaning towards XL and using slightly thicker pads if I can. Let's see, circumference = πD. So, an extra inch in circumference equates to a little over 1/4" in total space around the head, distributed to half of each side of the head.
I suppose I should ask them if the shell sizes are the same and the foam is different between models.
If you use any kind of cap or visor under your helmet larger may be the way to go.
Glenn