Specifically, I am having probs with:
- The RD shifting up smoothly. The spring does not always pull the chain to the next higher cog smoothly.
- When double-downshifting the ratchet in the shifter does not always engage the second shift [<click><click>), thus the RD will shift down two cogs then slip back one. This often results in the chain riding between two cogs . oh boy. dangerous.
I've tried everything I can to address the issues myself (cable upgrades, endless adjusting, calls to Shimano, etc.) I am now in the process of getting warranty replacements for my RD and right shifter from Shimano. This, of course, takes a long time and is going to cost me more money.
Any one else have similar issues? What did you do?