Keiser M5i Strider Compact Elliptical Macine

ABOUT US

For nearly four decades, Keiser has influenced the training of athletes, fitness enthusiasts and rehabilitation experts worldwide with better fitness products that unite both components of human performance: the force you produce, and the speed at which you produce it. 

CHANGING THE WORLD OF FITNESS

For over 40 years, Keiser has been changing the way people of diverse ages and abilities exercise, while helping to improve their performance and quality of life. However, this success story began over 45 years ago when Dennis Keiser was hired to design the first variable resistance machines for a leading manufacturer. A year later he launched "Commercial Design", a consulting engineering company that specialized in exercise equipment design. In 1976 Dennis' brother Randy joined him and a year later they formed Keiser Corporation. After a number of patents in both weight stack variable resistance design and hydraulic resistance design, Dennis applied for patent protection on a totally new concept for variable resistance using compressed air (pneumatics). In 1978 the brothers introduced to the world the first air powered variable resistance exercise machines for building strength and power.

More than 80% of the top professional sports teams in the world now train on Keiser machines, including every baseball team in the majors, the soccer champions of nine countries, several American football champions and countless Olympians. They’re joined by everyone from NASA to Navy Seals, medical experts and rehabilitation specialists, and major gyms like LA Fitness.

With more than 225,000 Keiser indoor bikes sold worldwide, trainers and fitness facility managers agree that our award-winning, groundbreaking cardio M-Series, built on magnetic resistance technology, offers a simply better ride.

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Since its inception, Keiser has always been at the cutting edge of the industry, and remains there today with a full range of fitness products for the young and the young-at-heart.

From elite testing equipment to strength and stretching machines, we offer it all. And beyond the products and services that exceed customers' expectations, Keiser offers educational and marketing tools to help them achieve greater success. As a matter of fact, Keiser has been involved in over 80 peer reviewed and published research studies on strength training and its effect on aging—making it the undisputed leader in serving the needs of an aging population, the fastest-growing segment of the market. But the secret to Keiser's longevity and success has always been its people and the success experienced by their customers.