If you want to undertake adjustments on your Sym R1 Z 125 then it will always be recommended to have access to a Workshop Manual to keep just for reference if you want to know how to take out a particular part such as the Brake Discs and fit it again in the correct manner.
Sym R1 Z 125 Workshop Manuals are able to offer identifiable diagnostic guides for your car or truck so if something is wrong it helps you discover what the problem is and ways to repair it. After that you can analyse if you can do this on your own or that the job is just too big you are able to make a reservation for your R1 Z 125 into a local mechanic.
Sym R1 Z 125 manual