If you choose to accomplish maintenance on your own MZ 125 SM Gangsta then it will always be recommended to have access to a Workshop Manual to use as a guide in case that you want to know how to take off a certain component much like the Wheel and match it again the right way.
MZ 125 SM Gangsta Workshop Manuals can provide special diagnostic guides on your car or truck so if something is not working it can help you determine what the problem is and tips on how to repair it. You can then evaluate if this can be done on your own or that the job is simply too big it is possible to make a booking for your 125 SM Gangsta in with a nearby garage.
MZ 125 SM Gangsta manual