sizing not as advertised!!
this website, and the Mavic website, state that the large has a maximum fit of 63 cm. i tried this on at the retail store and the box the helmet came in says the maximum fit is 61 cm, and it certainly felt like a 61cm.
I gave this three stars because it seems like a high quality helmet. I took two stars off for the misleading sizing claims, which are especially frustrating to me and my fellow big-headed brethren :)