Before You Start

Thank you for purchasing a KEYS treadmill! This quality product you have chosen was designed to meets your needs for cardiovascular exercise.

•The treadmill will only operate with a RED SAFETY KEY attached.

•The treadmill has a separate POWER A/C switch located on the frame near the motor hood.

•The treadmill is equipped with a ZERO RESET SAFETY FEATURE. The treadmill will not operate unless the Speed Dial is reset to zero (fully turned to the ‘zero’ position counter-clockwise). Please be sure to reset prior to operating.

•Before you start, please read the Owner’s Manual and become familiar with the operation of your new treadmill.

•READ THE OPERATING INSTRUCTIONS COMPLETELY before using the treadmill.

•Remember to take the time to warm up and perform the stretching exercises provided to avoid injury.

•Do not stand on the walking belt while 1) turning on the main POWER A/C button, and 2) turning the Speed Dial.

•Always adjust the speed of the treadmill in small increments as this treadmill is capable of high speeds.

•If you are taking medication, consult your physician to see if the medication will affect your exercise heart rate.

•If you have heart problems, you are not active, and/or are over the age of 35 years, do not start an exercise program without first contacting and receiving approval from your physician.

•To avoid the risk of electrical shock, always keep the console dry. Do not spill liquids on the console. KEYS recommends a sealed water bottle for beverages consumed while using the treadmill.

PRO 450, PRO 550 specifications

The Keys Fitness PRO 550 and PRO 450 are sophisticated fitness machines designed to enhance home workouts by providing superior performance, versatility, and innovative technology. These models, recognized for their robust construction and unique features, cater to fitness enthusiasts of all levels.

The PRO 550 is a high-end model that boasts an array of advanced features. Equipped with a powerful motor, this model delivers smooth and quiet operation, making it ideal for home use. The PRO 550 includes a wide range of pre-programmed workouts designed by fitness experts, allowing users to challenge themselves as they progress in their fitness journey. A large, easy-to-read display provides real-time feedback on speed, distance, time, and calories burned, ensuring users can keep track of their performance effortlessly.

On the other hand, the PRO 450 is a slightly more compact and budget-friendly option. While it may not have all the frills of the PRO 550, it still offers a robust workout experience. The PRO 450 features a solid motor and a range of workout programs, providing users with diverse training options. Its user-friendly interface allows for easy navigation through settings and workout modes, making it accessible for beginners and seasoned athletes alike.

Both models are equipped with several key technologies that enhance the workout experience. The advanced cushioning system in both treadmills ensures a comfortable running surface, reducing impact on joints and minimizing the risk of injury. Additionally, they feature built-in Bluetooth connectivity, allowing users to sync their devices for music playback or to track workouts through fitness apps.

The construction of both the PRO 550 and PRO 450 is designed for durability and stability. A heavy-duty frame provides support for users of varying weights, while the design ensures that the treadmills remain stable even during intense workouts. Safety features, including emergency stop buttons and handrail controls, are included to provide peace of mind while exercising.

In summary, the Keys Fitness PRO 550 and PRO 450 are exceptional choices for anyone looking to elevate their home workout experience. With their advanced features, durable construction, and user-oriented technologies, these treadmills represent excellent investments for achieving fitness goals. Whether you are a beginner or an experienced athlete, these models will support and inspire you throughout your fitness journey.