First off when I got into biking I never knew maintenance had to be done on a bike other than breaks. I'm just wondering for those who commute year round what your expendatures are on maintenance and what things you replace on a yearly basis. This is from 6 months of riding so others may have spent a lot more than I have and I know the more expensive parts will have to be replaced some time too. Also clarify what bike you are riding to commute on too that would help a lot.
On the bike alone I've replaced...
(2) break pad sets $20
(3) intertubes $12
(1) set of fenders $38
(1) rear rack $20
(1) set of pedals $20
This was in a six month period but I"m realizing that other things will have to be replaced especially my cogs, I rode them way too hard when I started riding.