I was there earlier this year. I didn't see a single bike with drop bars. Nothing fancy, just cheap utilitarian bikes. The nice part about the place is how common it is and integrated into the transportation system. There are plenty of dedicated bike lanes, and huge parking areas for bikes. It is normal to travel that way. In the U.S., it is considered by most an odd way to get around. I can't imagine that bikers in Amsterdam get yelled at the get off the road and on the sidewalk as much as they do in the U.S.