Originally Posted by
oldnslow2
Over the winter i do some major service of my bike. I checked the chain, with the Park tool, and it was under .5% wear so I reinstalled it. I've put about 500 miles on it since and a few days ago it would occasionally jump a tooth in the 4th and 5th largest cog.
How many total miles were on the chain? I replace mine every 3500 miles no matter what. I think not riding on wet roads and keeping them clean and lubed helps extend chain life.