Any more updates from anyone on this issue?
My bike has gone in today for investigation so I will have some more information on this soon.
But as it stands now, here in the UK at least, BMW UK are only listing the original part number (the one that has the faulty coating) on their parts system. And that is the only one my dealer is allowed to order and fit to my bike.
Now, when I look on the online USA parts systems, they list the original part and a newer part that superceded it from 10/19.
So if I was in the US, I assume they would fit the new part.
In the UK they are not.
Another strange thing is, the new part number is the same as those listed for a few other bikes like the XR1000. I asked my dealer if I could buy the new parts.
He said Yes, but they couldn't fit them to my bike because they are not on the approved parts list. I would have to do it myself.
So It seems I, and others in the UK have to have defective parts replaced with new possibly defective parts until they run out of stock of them.
On the plus side, the problem with the rocker arms may just be with certain batches and I might get good ones this time. 😉