If you have to execute maintenance to your KTM 990 Duke RR then it is always a great idea to have access to a Workshop Manual to keep just for personal reference if you want to know easy methods to remove a specific part for example, the Wheel and install it again the right way.
KTM 990 Duke RR Workshop Manuals will give identifiable diagnostic info on your automobile so if something is wrong it will help you determine what the issue is and how you can resolve it. You can then determine if you can do this yourself or in the event the job is simply too big you can still make a reservation for your 990 Duke RR in with a decent garage.
KTM 990 Duke RR manual