Originally Posted by
wingracer
Ask ten different people and you will get ten different answers. What I was told by an actual bearing manufacturer is avoid rapid rpm changes (the zing, zing, zing on the starter box for example) especially when cold. I'll take his word over anyone's short of a Rossi himself.

Wingracer is correct and Mr Rossi does agree with you if you go to the Novarossi Site and read the information available, I beleive it is under Warranty Care and Maintenance steel and ceramic no difference