As someone who rented a bike in Copenhagen when I was there for meetings I have to say I was unimpressed. The lanes in the centre are separated from the cars but this makes it extremely hard to overtake slower cyclists. The result is that cycling through the centre is slow and it is the only place where I have bee stuck in a cycle traffic jam - three light changes to get through a junction - because the organization of the bike lanes is so poor.

It is also far harder to cycle in Canada in the winter because of the snow and ice. Unlike cars, which are far more stable due to having four wheels, bikes are lethal on slippery ground as I found out as a student in the UK. If you want to look at a bike friendly city try Cambridge in the UK - it is far better than Copenhagen.