The Life Fitness treadmill gives you the same exciting reliability and technologically advanced features that have made the Lifestride 9100 the most durable and preferred treadmill ever. The 9100 provides traditional design, superior features and exceptional value. Life Fitness treadmills are the most popular, most trusted in the world. From their heavy-duty, fully-featured commercial treadmills for the busiest facilities to their durable, standard duty treadmill for low traffic use, Life Fitness has a treadmill for every exerciser.