DiabloScott

Ever have one get stuck for no obvious reason after a long period of working just fine?

I put this new chain on about a month ago - I don't know if this was the link I connected, but it's probable. I've had zero problems with it; shifting worked great, but last night on my second trip up The Mountain it was skipping in every gear - not knowing it was a link I did some cable adjustments on the fly and made it a little worse. Didn't figure out what the real problem was until I got home. Usually this is obvious on the first ride after a chain install, that's what's odd.

ThermionicScott 

I've had that happen. I figure it's a link that got a little less lube than the rest and developed a bit of rust inside.

Arthur Peabody

I'd think my pins were improperly seated, move them back and forth with a chain tool, use a vise grip to even them out.

dsbrantjr

You can grab the chain on either side of the link and flex it sideways to loosen the link if you don't have a chain tool handy.

Moe Zhoost

^^^ This is what I do. Every tight link that I've had was one that I had pressed in the pin.