Winter-proofing your bicycle & Winter bike maintenance

If you ride sealed during the winter it'll be 20 quid a month. I won't recommend trying sealed in the winter. Ball bearings, on the other hand, packed in good grade lithium grease can do a whole winter no bother.

I am now on my fourth winter on my fixed wheels with some cheap hubs with sealed bearings. I know that when I need to replace them it will cost less than a tenner per hub, and I can fill them with the grease of my choice at the time.
Both my MTBs have sealed bearings, and get a lot of abuse at this time of year. I have never replaced the bearings on them, the oldest (some Mavic Crossmax) are probably 15 years old.