Okay, guys. Another Q&A. I'm doing my own wrenching for the first time, so apologies in advance if my question seems daft. When affixing my new SRAM NX RD to the hanger of my bike and with the nut/screw/whatever fastened, the RD can still move freely (swing) on the RD. By "swinging", I mean that with the RD fastened to the hanger and looking at the bike from the right side, it can move/swing to the left. It obviously stops on the hangar stop, but can still move towards the back of the bike. Now, is it supposed to be able to move freely to the back of the bike or should it be completely fixed to the hanger?
