God. Dammnit. Yeah, it's my fault for not being vigilant about monitoring my drivetrain, but still. ****.

I know I'm not going to be able to afford a new cog and chainring, but I can afford the chain. If I go through with using a new chain on the old setup, what will I risk? I really want to ride this weekend and I kind of don't have a choice, as trains don't run on the weekend.

This brings another question to mind; how often do you replace your chains? Furthermore, how often do you replace your chainring and cog?