If you want to undertake maintenance tasks on your own BMW K1200R then it is usually recommended to own a Workshop Manual to use as personal reference just in case you need to know the right way to remove a particular part much like the Brake Pads and fit it again safely.
BMW K1200R Workshop Manuals offer you certain diagnostic info on your automobile therefore if something is faulty it helps you determine what the issue is and the way to make it better. You can then determine if this can be done on your own or that the job is too big you can actually make a booking for your K1200R in to a local repair garage.
BMW K1200R manual