Just received this letter from BMW. Apologies if this has been discussed before. I couldn't find anything here.
"As part of ongoing quality analyses at BMW, it has been determined that a process deviation occurred in the surface coating during the production of the rocker arms, possibly affecting your motorcycle. This could result in increased wear of the rocker arms and camshafts over the service life.
To correct this issue, the rocker arms will need to be inspected and, if necessary, replaced along with the camshafts."
