If you choose to do fixes to your Veli VL125GY 2 then it is usually a good idea to have a Workshop Manual for personal reference in the event you want to know how to take out a particular part including Brake Pads and fit it again in the right way.
Veli VL125GY 2 Workshop Manuals gives you specific diagnostic info with regards to your car or truck therefore if something is broken it will help you ascertain what the issue is and tips on how to resolve it. After that you can determine if this can be done yourself or that the job is just too big it is possible to book your VL125GY 2 into a decent garage.
Veli VL125GY 2 manual