If you wish to undertake maintenance tasks for your MV Agusta 150 RSS then it will always be recommended to own a Workshop Manual to keep just for personal reference if you need to know tips on how to strip off a particular component including Brake Discs and fit it again safely.
MV Agusta 150 RSS Workshop Manuals will give you specified diagnostic wisdom on your car or truck so if something is playing up it can help you ascertain what the issue is and tips on how to resolve it. You will be able to analyse if this can be done on your own or in case the job is too big you can make a reservation for your 150 RSS in to a decent mechanic.
MV Agusta 150 RSS manual