If you want to carry out auto repairs on your own Derbi GP1 250 Racing then it is usually a great idea to have access to a Workshop Manual to use as a guide in the event that you need to know methods to take off a specific component including Clutch and match it again accordingly.
Derbi GP1 250 Racing Workshop Manuals will provide you with identifiable diagnostic information on your car therefore if something is playing up it can help you figure out what the situation is and methods to fix it. You can then assess if this can be done by yourself or if ever the job is just too big you could make a booking for your GP1 250 Racing right into a local garage.
Derbi GP1 250 Racing manual