Originally Posted by
fietsbob
On the cheap ... Pull the fork out , cut a Band from an old inner tube , put it over the lower race , put the fork back in .
the Rubber band will stretch over the lower headset race and cover the places crud may get sprayed into the bearings.
That is exactly what I do. I ride all winter long, through salty slush, possibly the worst treatment a bike can get. I have a no name headset that came with the bike, my winter bike is 10yrs old, still same headset and good as new. I just had a look, a Chris King headset is ~$130. I think I did Ok for myself.