I rented a bike for five days. I chose this company because of their location, very central. Very nice staff. I had a very interesting chat about politics for example :p Staying in Norway means spending a lot of money so the price (nearly 90€) was a relief. As I didn't stayed nearby Oslo center I could've easily spend more money on public transport/day. After 3 days I went on the cities highlights biketour. It was great. It was the assistant manager being the guide and he was brilliant. Keeping it interesting and funny. And as I told him where I stayed (it takes me 45min going uphill), I got an upgrade right away. It was the coolest thing.

I did 2 bike tours -- the city and river tours. Both were really good -- the city tour showed the key landmarks & history, while the river tour showed more natural areas and a chance to stop for food & coffee. There was only a small overlap at the beginning of the tour during the introduction. I recommend doing the city tour at the beginning of your trip to Oslo -- because then you can go back and stop at many of the sites that you will just cycle by. Take the opportunity to ask questions -- you can get good restaurant recommendations as well.

This 3 hour tour was so enjoyable. Lots of stops and information - photo ops and a coffee break. Loved it. Not strenuous- only a few very small hills. Paul our guide did a great job of introducing us to this part of Oslo.