Creaking noise 575 with MRP LRP
Since converting 2011 575 to 2x10 with MRP LRP chain guide + bash guard, I've been dealing with creaking noise under load (mid-hard pedaling). It sounds almost exactly like chain noise due to lack of lubrication. However, I'm pretty convinced that this is not the case, because such chain noise always went away after a lube job. But the new noise never cease or even alleviate after so.
Anyone has experience about this? It's possible this is related to rubbing between plate of the chain guide and part of the front derailleur. However, I'm not sure about it. My next step in debugging process will likely be removing the chain guide plate to see if noise goes away. But if there's any comment or suggestion, I'd like to hear it.