If you need to do repairs on your own Derbi Senda XTreme 50 R then it will always be a good plan to have a Workshop Manual to keep just for reference in the event you need to know tips on how to take off a certain part for example, the Door and match it again appropriately.
Derbi Senda XTreme 50 R Workshop Manuals gives you specific diagnostic facts for your vehicle therefore if something is broken it can help you work out what the issue is and how to resolve it. Then you are able to evaluate if you can do this yourself or that the job is just too big you are able to make a reservation for your Senda XTreme 50 R into a suitable repair garage.
Derbi Senda XTreme 50 R manual