A:Decide which type of exercise bike is best for you. In general, go for the most comfortable exercise bike, because you'll more likely to use it. The primary types of bikes you'll need to choose from include: Recumbent or upright. Upright bikes more closely resemble riding a conventional bike, which makes them best if you're training for bike racing. Recumbent bikes have a wider, flatter seat and a backrest, and are the best choice if you feel uncomfortable on an upright exercise bike. Resistance type. Most modern exercise bikes have push-button adjustable magnetic resistance, which is generally smooth and quiet. However you may also encounter air resistance, which has an infinite numbers of levels but can get loud, especially at high speeds; flywheel resistance, which closely resembles pedaling a real bike; and direct tension resistance, with a strap that applies tension to the bike's wheel as you pedal.Before buying an exercise bike, you have to figure out what your exercise goals are. Think of how often you are going to use it and how hard do you want to push yourself. Many times, people overestimate their abilities and think they will manage to keep up with the workout plan they have in mind. Once you are able to make realistic estimations regarding the usage of the machine, you will find it easier to choose the one that matches your workout goals.