Originally Posted by sydney
And you don't have a real clue either do you? Plenty of others have done the upgrade with shifters,chain and cassette and sydney is hearing no gripes.
I'm sorry you've decided not to hear them, but the fact remains that the spacing is different. It's a small difference, but it's real and not a figment of Shimano's marketing imagination. Yes, we already know it works, you can get off that soapbox. Yes, we know you don't like anyone with contradictory experience, I'm over that as well.