If you wish to perform repairs to your Derbi Senda SM DRD then it is usually a good idea to have a Workshop Manual for personal reference if perhaps you want to know the right way to remove a particular part such as the Door and match it again safely.
Derbi Senda SM DRD Workshop Manuals offer you distinct diagnostic details on your car so if something is playing up it helps you understand what the problem is and how to make it better. You will be able to decide if this can be achieved by yourself or that the job is too big you can actually book your Senda SM DRD right into a decent garage.
Derbi Senda SM DRD manual