If you wish to execute repairs to your Rieju RS 2 Matrix then it will always be a good idea to possess a Workshop Manual to use as reference should you want to know proven methods to remove a certain part such as the Brake Discs and install it again successfully.
Rieju RS 2 Matrix Workshop Manuals will provide you with identifiable diagnostic information for your car therefore if something is faulty it helps you ascertain what the issue is and the best way to resolve it. You will be able to analyse if this can be achieved by yourself or that the job is too big you could make a booking for your RS 2 Matrix right into a local repair garage.
Rieju RS 2 Matrix manual