Originally Posted by WayneC1
If you are referring to the steering head bearings, look to the Koyo bearings with inbuilt seal, one is
Koyo Part No 320/28JRRS (Replacement for stock BMW bearing)
F800 and other model owners have moved to them for longer SHB life, I would still use the metal dust cover as well
The bearings on the steering stem. Thanks for the link. Planning to get a replacement set of bearings for the YZ.
What I'm really asking are what dust covers are used?