If you have to conduct maintenance to your Honda CB 125 S then it is always a good idea to possess a Workshop Manual for a guide in the event you want to know how you can take off a certain part such as the Wheel and install it again in the correct manner.
Honda CB 125 S Workshop Manuals will give you unique diagnostic guidelines on your vehicle so if something is not working it can help you figure out what the issue is and how to make it better. You can then evaluate if this can be achieved by yourself or that the job is simply too big you can actually book your CB 125 S into a local repair garage.
Honda CB 125 S manual