If you wish to do auto repairs for your Derbi Senda Baja 125R then it is always recommended to have access to a Workshop Manual for reference in case you want to know the best ways to remove a specific part for example, the Brake Discs and fit it again in the correct manner.
Derbi Senda Baja 125R Workshop Manuals offer you targeted diagnostic guidelines for your car so if something is playing up it can help you work out what the problem is and how you can resolve it. You will be able to decide if you can do this yourself or in the event the job is just too big you can make a booking for your Senda Baja 125R into a local mechanic.
Derbi Senda Baja 125R manual