The road where I live is on a flood plain and tends to flood every winter. Despite this, I have continued riding to work through the water.
I'm trying my best to dry the bike out at the end of the day, but I have noticed now (on the third day of the flooding) that the steering has become a lot heavier and there's some rusty residue coming out from the lower race of the headset. I'm planning to clean and re-grease it tomorrow, but I'm wondering whether any of the other bearings will need the same treatment.
Specifically, I'm worried about the wheel hubs and the bottom bracket. While the water isn't deep enough to submerge them, it does mean they get a thorough soaking. Is the water likely to cause the same problem with them? What about if they did become submerged?