I called them and spoke to somebody and pointed out the 30mm spec. Not sure that person understood what I was talking about. Just wanted to be sure I was not mistaken on the two sizes for crown races. My friend, Tim, just has to have gold and the 110 Cane Creek. I told him he can get gold in Chris King, too, but he wanted this headset for some reason. My guess is because he has a Cane Creek headset already and the wheels he had from them were incredibly durable. Told him a Chris King from me won't cost that much more and really is way over the top well made.