If you have to do maintenance tasks for your Derbi GPR 50 R then it is usually recommended to possess a Workshop Manual to keep just for a reference if you want to know ways to take out a specific part including Clutch and fit it again successfully.
Derbi GPR 50 R Workshop Manuals provides targeted diagnostic information for the automobile therefore if something is wrong it helps you determine what the situation is and some ways to repair it. Then you are able to evaluate if you can do this yourself or in the event the job is simply too big you can still make a booking for your GPR 50 R right into a decent car garage.
Derbi GPR 50 R manual