Originally Posted by
Scrabbler
I hate to have to admit this, but it's stretched 3/16ths (over 12 inches) NOT 3/8ths. Sorry about that.
Ugh. So I'm guessing now would be a good time to change out that chain before major damage sets in? Likely to be fine?
Thanks.
It's a pretty safe bet your cassette is now a throw-away too. Your chainrings may or may not need to be replaced as chainrings are pretty wear tolerant. Replace the chain and cassette immediately and try the current chaings. If they shift and run properly, be thankful.