'08+ went with sealed crank bearings, grease inside. Personally, I like the old school stuff, just feel better about it knowing I use plenty of good oil and its one less thing to fail. There were a couple failures reported here but nothing widespread. From what I heard you can just use the '07 bearings as the cases are the same, but I have not verified this. The open roller/ball combo was sound. I'd like to know of a significant population of high hour '08+ bikes with original bearings. My issue with the seals is what does all the fuel additives do to them overtime?
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