If you have to perform auto repairs to your Veli ZQ 125 then it is usually recommended to possess a Workshop Manual to use as a reference just in case you need to know how to strip off a certain component for example, the Brake Pads and match it again accordingly.
Veli ZQ 125 Workshop Manuals offers you specified diagnostic wisdom for the car so if something is broken it can help you discover what the issue is and how you can make it better. You can then determine if you can do this yourself or if ever the job is just too big you can actually make a booking for your ZQ 125 in to a local garage.
Veli ZQ 125 manual