Hi- I'm new so please forgive my silly question. I have an older, 12 speed (I think you all now call it a 6 speed-6 cogs), with all Shimano 600 components. I purchased a new chain today, leaving the selection up to the sales person. When home, the new chain is about 3 inches longer. The old chain has, I believe, 110 links and the new one has 116 links.
Is it the right chain and the old one was incorrect, or what? Thanks so much!