There's actually some organized opposition to bike lanes in the US, from some of the more conspiracy theory oriented members of the Tea Party and the Libertarians. They think bike lanes are part of the UN's "Agenda 21", which they see as a nefarious plot to take away our sovereignty.

Bike lanes, for example, according to these people encourage people to bike more, which encourages higher density cities (as people want to be within bike range of work). Having us packed tighter into cities will make it easier for the UN troops to round is up and take away our guns and then our property.

These people tend to be politically active, and have turned up in enough numbers at some city councils where bike lanes were being considered to shout down those in favor or bike lanes, and scare the politicians into thinking bike lanes are actually controversial among the general electorate.

The Republican Party is encouraging this stuff. They made opposition to Agenda 21 an official part of their party platform. They didn't mention any particular things, like bike lanes, put simply mentioning Agenda 21 is going to encourage the conspiracy nuts.

Plenty of amusing but frightening on this in Goole, if you are curious. Here's a good start: http://www.theatlanticwire.com/politics/2012/06/inside-agend...