If you wish to carry out adjustments to your GAS GAS SM 125 Supermotard then it will always be a good plan to have a Workshop Manual to keep just for a guide if perhaps you want to know how you can take off a specific component for example Brake Pads and match it again accurately.
GAS GAS SM 125 Supermotard Workshop Manuals offers you detailed diagnostic info for your car so if something is not working it can help you ascertain what the problem is and the way to repair it. Then you are able to evaluate if this can be done on your own or in case the job is too big you could book your SM 125 Supermotard in with a suitable garage.
GAS GAS SM 125 Supermotard manual