Journeyman
"And this one is just right" ~ Goldilocks
Agree with Michael_G. Check for pad options. Both my Arai and SCHUBERTH were uncomfortable and somewhat painful at first. They broke in (took weeks) and then fit perfectly. BUT, it's a fine line between needing a break-in and a bad fit (beyond pads). I guess I'm just saying that I've felt your pain and, in my case, got over it.No. A helmet that causes you pain for any length of time should not be worn. That said, many (most?) manufactures offer a selection of pads that are thinner or thicker depending you your needs. You need to find pads that make the helmet feel correct right when you put it on or return it for a different model.
-MIG