So i've been shopping for an aero helmet and come across a problem. I can't seem to find an XL version of any brand. I wear a Bell helmet at the moment that is a large (61-65cm) I've been searching for a helmet around the same size in the TT department. Am I just screwed with having a big head? I tested out the Giro Air Attack Shield but the Large is not big enough as the visor doesn't come down far enough or cover the forehead. Does Giro make an XL version of the helmet? I can't seem to find any info other than it listing the sizing info on their website for the XL but nothing for sale.

Anyone know of a good XL aero TT helmet?