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Frame: the mechanical core of a bicycle, the frame provides points of attachment for the various components that make up the machine. The term is variously construed, and can refer to the base section, always including the bottom bracket, or to base frame, fork, and suspension components such as a shock absorber
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Simple grooved bicycle rack (2006) Early models tend to offer a means of securing one wheel: these can be a grooved piece of concrete in the ground, a forked piece of metal into which a wheel of the bicycle is pushed, or a horizontal "ladder" providing positions for the front wheel of many bicycles.
Example of modern treadmill. A treadmill is a device generally used for walking, running, or climbing while staying in the same place.Treadmills were introduced before the development of powered machines to harness the power of animals or humans to do work, often a type of mill operated by a person or animal treading the steps of a treadwheel to grind grain.
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The same year, Life Fitness expanded into treadmills. Life Fitness was acquired by Brunswick Corporation in June 1997 for $310 million. [5] [6] The sale was completed on July 11, 1997. [7] Later in 1997, Life Fitness bought Hammer Strength, a manufacturer of weight machines. [8] ParaBody, Inc. was bought by Life Fitness in 1998. [9] [10]
Bicycle pedal, quill road type, with toe clip and toe strap (1970s) The quill pedal is a common pedal system on bicycles. It consists of a main axle section that is attached to the bicycle crank arm and contains extensions from the axle to which parallel cage plates are attached at the front and rear of the pedal.
This range included a treadmill, an incline trainer, an elliptical, and recumbent and upright bikes. After the 9600 series was discontinued, NordicTrack has not made any more commercial gym equipment ever since. In 2009, NordicTrack pioneered the incline trainer, a specialty treadmill that can reach an incline of up to 40%.