Originally Posted by ShinyBaldy
I think you'll find far more non-replaceable deraileur hangers on composite frames nowadays... esp ones with the intention of being the lightest around. Manufacturers can usually repair it for you by melting the bonds and replacing it.
Think about it. A replaceable hanger might add a few grams if that.The answer is that on composite frames the whole dropout can be replaced,but it cost more and is a much bigger PITA to have done.