If you need to perform fixes for your Derbi Cross City 125 then it is always a good idea to have access to a Workshop Manual to use as reference if you need to know tips to strip off a specific part much like the Gearbox and fit it again adequately.
Derbi Cross City 125 Workshop Manuals will give special diagnostic information for your car or truck therefore if something is playing up it can help you find out what the situation is and how to repair it. You can then determine if this can be achieved on your own or in case the job is too big it is possible to make a booking for your Cross City 125 right into a local friendly mechanic.
Derbi Cross City 125 manual