I have two chains just before replacing them (they have 10 thousand kms each) and last me about 3-400 kms. On another bike I have completely new chains and switched them after 4-500 kms. But I am slightly OCD and annoyed when it becomes noisier 
I have two chains just before replacing them (they have 10 thousand kms each) and last me about 3-400 kms. On another bike I have completely new chains and switched them after 4-500 kms. But I am slightly OCD and annoyed when it becomes noisier