Originally Posted by
Lenkearney
and how do you know when you should replace it?
My chain has been on my bike over ten years and my bike computer says over 5K miles.
Len
It probably needs to be replaced, the real question is though, if it's become too worn, you may need to replace your cassette and chainrings as well, as riding too long on a over worn chain damages those. If that is the case, as my local wrench says: might as well ride it until it breaks now!