Originally Posted by
Kimmo
I bet it's the pulleys, which Shimano changed with the last generation, presumably to deal with wider cassettes, since I saw somebody say they got missed shifts to larger cogs when they tried the old style pulleys.
Ok methinks I will order the old style pulleys then. I am guessing it would be big chainring with larger cogs? That would be fine for me, you can always just go into the small ring one gear earlier, even now I think I don't really use the 7th-11th cog on the big ring.