There was the 1987 set “Cycle Fix-it Shop”
but everything since then has been motorcycles or (gahhh!) ATVs.
Mind you there have been years when the LEGO City line consisted almost entirely of fire and police-related models. They are currently producing a much wider range than that, so count your blessings, buy bicycles on http://www.bricklink.com, and create your own bike utopia!]]>