If you want to conduct maintenance tasks on your own Hyosung RX 125 SM then it is always recommended to have access to a Workshop Manual to use as personal reference in the event that you need to know how to strip off a specific part including Wheel Bearing and fit it again appropriately.
Hyosung RX 125 SM Workshop Manuals offers clear targeted diagnostic facts for the automobile therefore if something is faulty it helps you identify what the issue is and how to fix it. Then you are able to evaluate if this can be achieved yourself or that the job is simply too big you can actually make a booking for your RX 125 SM in with a nearby garage.
Hyosung RX 125 SM manual