|The cogs of time: old 12T on the left, new 12T on the right|
Replaced the chain recently, and it's time to replace the cogs, too. The silver cog above is the old one. Some of the teeth had started to get a lip on the inside along the top, and it just don't cog like it used to. Some of them also had started to get that noticeable shark fin shape. In this picture they don't look that bad, though. Of the photos I took, I like this one the most, because the old one looks pretty good from this angle, even after much distance and time have teamed up to wear it down. This Old Cog. Get up. Go ride.