Originally Posted by
Amoxicillin
From what one can see on the pic it seems that the deraileur hanger needs to be exchanged. If it's interchangeable in most modern bikes. Contact your bike manufacturer for the correct replacement as they come in different shapes. That's all, no derailleur needed. You can screw it loose with the big hexagonal on the top of the hanger. This part is pretty cheap compared to a derailleur. Hope this helps.
Amox
Aww there are different types of derailleur hangers for every manufacturer? Er that means I won't find it at my local bike shop and I'll have to order it and wait until it comes in through the mail. :/ haha. It's good to know I don't have to replace the whole thing; I thought it was part of the derailleur itself. Thanks so much. :] you're the awesome-est.