Originally Posted by
norskagent
What if the bearings are silky smooth? Service anyway or leave as is? I'm working on an early 70s Gitane, the wheels and headset needed service but the BB is so smooth and nicely adjusted I held off.
Service it anyway. Until you crack it open, you will not know if someone greased it, or if your ball-bearings are just running-dry on the smooth varnished surface of the heretofore un-pitted cups.