My Derailleur Hanger broke and I want to replace it. However, I couldn't find any information about my bike or model or what kind of hanger I need to buy. The brand is Esperia and model name is Aria.
Here is the photo of the broken hanger:
I even tried calling the seller, they said they can't help me with that since they are just resellers.
So, I tried to check the bike to see if I can find anything helpful and I saw that speed gear was Shimano RD-2300. Is the hanger special to this Shimano model, If no how can I find the correct hanger for my bike?