Metal in Engine Oil Question

[CentralC]

2021 R18 FE base model:

Warranty has expired, so I changed the R18 engine oil for the first time myself. Bike has been serviced by BMW dealer regularly.

After 1 week of the old oil settling in the catch pan, I notices some metal in the oil. As I poured my old oil into a container, at the very bottom was some noticeable metal. Not a lot, but it caught my eye. One .3mm sliver and some metal dust. Engine has 2000 miles on it. How concerning is this? Anything I can do about it?

Also, is no oil in the sight glass normal when it is running?

Best

 

[Anibal]

It is normal for metal parts to shed excess metal when mating so you may notice more residue when the bike has very low mileage. Did you change the oil filter and inspected the inside for more metal particles? I wouldn’t be too concerned at this point, just ensure you use the correct oil specs and at the next oil change re inspected the oil and filter. Also the drain plug should have a magnet in charge of catching these very fine metal particles. Ensure you clean it as well. If you can and for peace of mind, change the oil sooner than recommended ,i.e, in the next 3K mls and see what you get.
When you inspect the glass window, make sure the engine is off, the bike is in the upright position and it has passed about 3 minutes since you switched the engine off to ensure all the oil has trickled down to the pan. Use your phone to take a picture or video whilst seating on the bike to check the window, unless you have a stand that allows for the bike to remain upright. On the side stand and with the bike running or off, the glass window won’t show any oil.

 

[CentralC]

Thanks

 

[BER18 100]

I remember many testimonials to metal flakes in the final drive of the R1200c. My final drive never had any issues but that single sided swing arm still has me baffled. How is it possible to build a bearing to carry the weight of the bike while turning and accelerating?
I was further surprised when I discovered 2 weeks ago that the K1600B bike also has a single sided swing arm. That bike is a high performance machine. I would think a hard acceleration into a turn with a 2-up ride would shred the bearing simply from the intense magnitude of the forces happening simultaneously.