I don't suppose you've got an out of shape tyre..? Running your hand around it should feel smooth, if it's bumpy or catches more rubbing in one direction than the other indicates an unevenly worn tyre. Could even be a flat spot since you only noticed after a lock-up and slide.
Then again if the noise went away after changing the bearing then came back weeks later it could well be the new bearing at fault. Possible to get it fixed under warranty? If it wasn't pressed in cleanly or torqued up properly they can wear very quickly.
Then again if the noise went away after changing the bearing then came back weeks later it could well be the new bearing at fault. Possible to get it fixed under warranty? If it wasn't pressed in cleanly or torqued up properly they can wear very quickly.