I have 2 damaged teeth on my largest front cog. They were bent towards the inside of the bike, but i filed them away so that they dont hook out. Only problem now is that I have 2 teeth that are slightly smaller than the others. They still seem to catch the chain though. Should I replace it, should I keep an eye on it, or should I forget about it?
I'm a complete newbie when it comes to bike maintanance.