If you have to do repairs on your Derbi Revolution 50 then it is usually a good idea to possess a Workshop Manual for reference if perhaps you want to know the best ways to take off a specific component for example the Drive Shaft and fit it again in the correct way.
Derbi Revolution 50 Workshop Manuals offers clear specific diagnostic information for your vehicle so if something is faulty it helps you work out what the problem is and tips on how to fix it. You will be able to decide if you can do this by yourself or that the job is simply too big it is possible to book your Revolution 50 in to a nearby garage.
Derbi Revolution 50 manual