I've been a hobby mountain biker for a couple of years now. My bike is getting older and older (10+ years, still 26 inches) and I would like to do more maintenance jobs myself since it is not worth spending tons of money on it. I sadly don't keep track of my kilometres and are more of a weekend driver. Last chain replacement was last year, other parts of the driving train more than 4 years ago.
I would like to replace my drive train as I have difficulties shifting (rear) but I want to make sure that I only replace parts that really need replacement. Could you please give me your opinion on the state of these parts? Cleaning is on my list, too 😉
I feel that the outermost / biggest and middle ring could be replaced as they are not symmetrical any more and are starting to get this shark-teeth look.
Thanks a lot!