Bicycles are an integral part of Amsterdam. Most locals will use a bicycle for a ride up to half an hour for work, shopping or pleasure. On many major streets there are separate bicycle path, that are not to be used by pedestrians! (You will experience that on your first day of visit when you hear some loud bell ringing and probably some cursing).
Amsterdam has a number a bicycle renting companies; some offering guided tours for small groups.
Besides the inner city the surroundings of Amsterdam are great to explore by bicycle, especial around the borders of the former Zuiderzee, now IJsselmeer and parts of Waterland.
Cycle routes are well indicated with special signs and some of the longer Dutch cycling routes run via Amsterdam.
A great way to visit The Netherlands by sunny weather. Everything is foreseen for bikers. I was struck to see such large cycling paths ! It's great to cycle side by side. Moreover these paths are very often well separated from the road (look at the pic, we're cycling along the wotorway !) and surrounded by nature. It's a real joy !