If you want to perform maintenance tasks for your Honda CB 125 SS then it is always a good idea to possess a Workshop Manual to keep just for a reference just in case you want to know simple methods to take out a particular component much like the Brake Discs and fit it again perfectly.
Honda CB 125 SS Workshop Manuals provide you with identifiable diagnostic information for your automobile so if something is faulty it can help you understand what the issue is and how to make it better. You can then determine if this can be done by yourself or in case the job is just too big you are able to book your CB 125 SS in with a suitable friendly mechanic.
Honda CB 125 SS manual