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Bike trainer

Aerobic exercising apparatuses are well known in many forms which emulate real-world, non-stationary activities in a stationary manner. These include, among others, stationary exercising devices which emulate rowing, cycling, cross-country and downhill skiing, ice skating, walking, running, stair climbing, and rock climbing. Bicycle riding has been an enjoyable recreational activity for individuals of all ages for many years. Bicycle riding has gained popularity as an economical means of transportation which is also environmentally friendly. People may use a bicycle for physical exercise indoors. Many people are utilizing the aerobic benefits of bicycle riding to assist them in attaining a measure of physical fitness. A bicycle comprises a base, a flywheel pivotally supported on the base, a pedal mechanism for pedaling by the user to rotate the flywheel, a pair of handlebars for the holding of the hands when the user pedaling the pedal mechanism, and a damper that imparts a damping resistance to the flywheel. A common form of exercise involves use of a bicycle trainer, which includes a frame that supports the driven wheel of the bicycle and a resistance unit that engages the wheel to apply resistance upon rotation of the wheel. Bicycle trainers are compact devices that can be easily stored and used when needed to provide physical conditioning for a bicycle rider. They can be used advantageously indoors during inclement weather, after dark or at other times when normal bicycle riding is impractical or inconvenient. A bicycle trainer includes a base that attaches to and supports a rear axle of a bicycle. A rotatable fan, electromagnetic generator or other drag inducing device is coupled to be driven by the rotating rear wheel of the bicycle so as to provide a drag force that increases with rotational velocity of the wheel. A bicycle trainer is commonly referred to as a wind trainer or mag trainer, depending upon the drag inducing device that is used.

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