What bugs me is I have seen and used 6205 deep groove ball bearings (same as on my Dyna both front and rear) in applications with 260*F at 8000 RPM with mean life spans of 3 years or longer. I am not saying the sky is falling, but I would really like to understand the reason behind the premature failures.
The up-side is the bearing happens to be a standard size and lots of companies make them. You can select the clearance and type of grease that is inside them. Everything from common to precision quality.
Hoop,
Recommendations? Front and rear.
TQ