If you want to execute auto repairs on your Derbi DRD Racing 50 R then it will always be recommended to have a Workshop Manual for reference in the event that you need to know easy methods to take off a particular part for instance the Clutch and fit it again properly.
Derbi DRD Racing 50 R Workshop Manuals can provide exact diagnostic facts on your automobile therefore if something is not working it will help you understand what the issue is and the best way to make it better. Then you are able to analyse if you can do this by yourself or in case the job is just too big you can still make a booking for your DRD Racing 50 R in with a suitable garage.
Derbi DRD Racing 50 R manual