In Canada, it is also an official recall. They don't currently have the part, so I'm waiting at the moment.
I called the Tech Services Manager for BMW Motorrad Canada and he suggested not actually replacing the ring, but carrying it as a spare. But he also knows the build date of my bike and apparently certain builds are more susceptible to this problem than others. He also knows I'm more than a little paranoid about techs messing with my bike and apparently this is one ugly procedure which includes drilling out blind-end bolts that are a part of the ignition and retapping the holes for new bolts to reassemble the ignition switch. Not the kind of procedure I'm too keen on having the local techs perform. Especially for the "first time". I still haven't had my brakes bled for the same reason.
IBA, MOA, ONS
The mind knows no speed limit.
'06 GT - CGM "Katie"
'84 Airhead "Rita"