If you need to accomplish adjustments for your Hyosung X 125D then it is always recommended to have access to a Workshop Manual to use as a guide in case you want to know simple methods to take off a specific component for example Wheel Bearing and fit it again the right way.
Hyosung X 125D Workshop Manuals will provide you with detailed diagnostic facts for the car so if something is faulty it will help you find out what the problem is and easy methods to make it better. You can then analyse if this can be done by yourself or if the job is too big you can actually book your X 125D in to a trusted friendly mechanic.
Hyosung X 125D manual