• Everything looks pretty worn, and should the B screw be at max?

  • Agree that bits are worn, but am wondering how that will affect shifting? Basically trying to diagnose if the issue requires me to replace parts. Spring still seems to work when it's at the smallest front chainring and I manually push the derailleur and let it spring back, but then after it shifts up it refuses to come back down.

    Think I worded original post a bit stupidly and meant to say that the B screw on the RD was all the way out so it's at minimum* tension.

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