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.

You might have used dodgy parts. The shortest lifespan on any sealed bearing I've used was 2 years with NO maintenance. All forms of grit and winter road muck including salt. The whole point of sealed bearings is to be protected from the elements,