Not sure if it's a practical place to bike, but where I was, definitely not. Audrey and I stayed near the plaza and strolled there at night, and I noticed several bikes chained outside restaurants, either for patrons or employees.
Well. Cedar Rapids may have some work to do so it can be bike friendly, but it's already more bike friendly than the plaza in Kansas City.
When you want to use 2 wheels, Cedar Rapids is probably the right size. Smaller and there is nowhere to go. Bigger and there's no way to go there.