Congratulations on your R9T and welcome to the forum! 
Do the seller provide a maintenance history, or are you able to get a copy of the service records from the BMW shop where the work was performed? If the bike has been serviced according to BMW's recommendations as listed in the owner's manual, I would recommend just taking up where they left off. That might mean just an oil and filter change, or perhaps more, depending on what it listed as services needed at the next interval.
If you did not get (or cannot get) a detailed service history, I would think about changing all fluids, including the brakes and the forks. Check the brake pads and the date codes on the tires, too. Unless the tread and sidewalls are in great condition, if the tires are over 6-7 years old I would replace them.
Good luck with the new bike and please post a couple photos of it when you have time!
Do the seller provide a maintenance history, or are you able to get a copy of the service records from the BMW shop where the work was performed? If the bike has been serviced according to BMW's recommendations as listed in the owner's manual, I would recommend just taking up where they left off. That might mean just an oil and filter change, or perhaps more, depending on what it listed as services needed at the next interval.
If you did not get (or cannot get) a detailed service history, I would think about changing all fluids, including the brakes and the forks. Check the brake pads and the date codes on the tires, too. Unless the tread and sidewalls are in great condition, if the tires are over 6-7 years old I would replace them.
Good luck with the new bike and please post a couple photos of it when you have time!
