Which Scott Addict frames does this dropout hanger fit?

The Scott Dropout Addict is the factory replacement derailleur hanger for Scott Addict road frames, supplied in a single size that covers every Addict frame size. It is the OEM part rather than an aftermarket copy, which matters more on hangers than on almost any other component, because a hanger that sits even slightly out of alignment will never let a rear derailleur index cleanly no matter how much you fiddle with the barrel adjuster.

A derailleur hanger is built to be the sacrificial link in the system. When the derailleur takes a hit, whether from a crash, a fall in the parking lot, or a shift that drops the chain into the spokes, the hanger bends or snaps so the frame does not. Replacing it is a five minute job with a hex key. Not replacing it means chasing a shifting problem that no amount of cable tension will solve. Keep one in the toolbox or the travel case, because hangers are frame specific and no shop at a race venue is going to have yours.