If you wish to conduct maintenance to your GAS GAS EC 125 then it is always recommended to own a Workshop Manual to keep just for a reference in case you want to know tips to take off a specific component for example the Wheel Bearing and match it again efficiently.
GAS GAS EC 125 Workshop Manuals provide you with specific diagnostic guides with regards to your automobile therefore if something is playing up it can help you understand what the situation is and the best way to repair it. You can then determine if this can be achieved yourself or in the event the job is simply too big it is possible to book your EC 125 right into a suitable repair garage.
GAS GAS EC 125 manual