Shifts poorly at the cassette
Hey!
I've bought a used CAAD10, which shifted poorly, so I bought new chain, cassette (needed bigger cog for climbing anyway) and new cable. None of of which has helped. I've used the parktool youtube as a guide, and also the shimano manual, which I found rather difficult to understand 100%.
I'm starting to wonder if its the rear derailleur or shifter itself. There seems to always be a trade off somewhere.
It will shift rather well from smallest to 6th cog, both up and down. However, for the rest of the cogs, it will either shift well up, but extremly bad down, or opposite.
Suggestions?