If you choose to accomplish adjustments on your Piaggio X8 125 then it will always be recommended to own a Workshop Manual to use as a reference if perhaps you want to know ways to take out a certain component such as the Wheel Bearing and install it again appropriately.
Piaggio X8 125 Workshop Manuals provides specified diagnostic information on your automobile therefore if something is playing up it will help you work out what the issue is and some ways to correct it. After that you can determine if this can be done on your own or if the job is too big you can make a reservation for your X8 125 into a trusted mechanic.
Piaggio X8 125 manual