I've got a bad bottom bracket cup & the bearings that go with it. The bike is Nishiki Olympic road bike, I think around '88 or '89 or something. The cup has a rubber piece that's bad as well, I'm assuming it keeps the grease from coming out of the cup...?
Anyways... how do I go about replacing the cup, bearings & rubber piece? Should I just buy a whole new bottom bracket 'kit'? The fixed cup looks good and the bearings are good.