If you want to conduct maintenance on your own Derbi 125 SM Baja then it is always a great idea to possess a Workshop Manual to use as a reference in the event you want to know simple methods to remove a particular part much like the Wheel Bearing and fit it again adequately.
Derbi 125 SM Baja Workshop Manuals provide you with distinct diagnostic details with regards to your car therefore if something is broken it helps you work out what the problem is and ways to fix it. Then you are able to analyse if this can be done by yourself or if ever the job is simply too big it is possible to book your 125 SM Baja right into a trusted friendly mechanic.
Derbi 125 SM Baja manual