how often should you change bearings?
 

I've been running my brushless motor for awhile now and figure it might be a good idea. Would you guys suggest the oem bearings or should I go with ceramic bearings? Thanks.

Ceremics are nice....I never had the need for them however.

I've done the ceramic upgrade.. and it is nice.. but all of the stock bearings on the other motors are fine.. I just keep lubing them once a month... I would stick to stock and upgrade when/if they go...