If you need to do maintenance tasks on your own Derbi GP 1 Racing then it is usually recommended to have access to a Workshop Manual to keep just for reference in case that you want to know proven methods to take out a specific component for example the Exhaust and install it again safely.
Derbi GP 1 Racing Workshop Manuals offer you identifiable diagnostic guidelines for the car or truck therefore if something is faulty it helps you figure out what the situation is and easy methods to repair it. You can then assess if you can do this yourself or if the job is just too big you can make a booking for your GP 1 Racing in with a local car garage.
Derbi GP 1 Racing manual