If you choose to conduct maintenance tasks to your Derbi Cross City 125 then it will always be recommended to own a Workshop Manual to use as a reference in the event you need to know how to take out a certain part for instance the Drive Shaft and match it again in the correct manner.
Derbi Cross City 125 Workshop Manuals will give targeted diagnostic info on your vehicle so if something is wrong it can help you work out what the problem is and easy methods to resolve it. You can then decide if this can be achieved by yourself or if ever the job is simply too big you are able to book your Cross City 125 into a suitable car garage.
Derbi Cross City 125 manual