Originally Posted by
Infidel79
This may be a long shot, as I've never had this problem so I haven't watched this closely, but in the second clip, it looks like the chain is flopping around excessively after the shift. This leads me to question whether the rear derailleur is properly taking up the excess slack or otherwise tensioning the chain properly. Perhaps this could also account for the problem in the first clip. How did you determine chain length? Is the chain properly lubed?
Thanks for the response. The chain is lubed fine, I don't think that's the issue. I used the big/big+2 links (1 inch) method for sizing the chain. But perhaps with a 28T cassette that's the problem. I'm more worried about the first clip though, how the chain doesn't seem to seat right away on the upshift. I looked closer and it's an extension of the spot right where the chain first grabs and half of it is below towards the lower chainring and the other half is hooked onto the big ring. Well, the links that follow on top from where it grabs on to the big chainring don't sit down in the grooves. Who knows, maybe just give it a few hundred miles and it will all settle in :-)