Lars Lehtonen writes:

Usually the answer to STI problems is:

STI = Shimano Total Integration

Is that what I have? How do I see that?
What's totally integrated?

Step one: Flush it with WD-40 and the replace the
displaced grease with Tri-Flow.

By "it", you mean the derailers?

OK, Tri-Flow.

Step two: If that didn't work, replace it.

Again, what do you mean by "it"?

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