Originally Posted by
aclinjury
no-name bikes and big-name bikes use the same specs (mostly) as far as hangers go. And as long as a rear derailleur (in its current form) is being used, then all hangers will be pretty much similar and will work for no-name or big-name bikes. I don't see this changing anytime soon, not even close.
You must not have seen the vast variety of hangers. One hanger from one bike fitting to another one is like wining the lottery.
This is just from a 3rd party manufacturer that covers often used ones (not including rare ones as there is no business case for them)