I don’t have room to bring my real bike indoors, and I hate the friction resistance that I always see on compact stationary bikes; is there a good one that folds up and can stay in a corner when not in use, yet has magnetic resistance?
I agree with Phillip. What difference does it make if you bring your bike inside for a short time, or have an indoor bike? I suggest that you search Performancebikes.com. They have some excellent indoor trainers. The Kinetic Road Machine is an excellent indoor training tool.