Taking your bike on public transit can be a huge hassle, or often, not an option at all. Specially designed accommodations for bicyclists are usually severely limited, and on certain bus, train and metro systems, bikes are only allowed on board during non-peak hours.
Denmark's transit system continues to build its reputation for being bike friendly. Early last year, the Danish State Railways, offered free bike carrying on their trains that serve greater Copenhagen, in an effort to further endorse biking as a legitimate mode of transit. As the blog Copenhagenize.com wrote, "DSB hopes to make everyday journeys easier for Copenhageners and encourage more people to use their bicycle."
Thanks to Garrett Bradford