hey, i have to get a new rear derailler for my shockwave 9.5, and the part it attaches to is different from what im used to. instead of a little derailler hanger, its all one big metal piece at the back of the swingarm. does this mean i can attach a shimano saint type derailler or what? any help is appreciated, i mostly ride downhill in va, so i want to buy something durable and cheap, but i know this isnt a likely combo. what kind should i get?