Precor Premium Series 9.31 Review

Precor Premium Series 9.31 Treadmill

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as of July 28, 2021 1:35 am


  • Professional-quality treadmill for the home with innovative design that adjusts belt speed to foot speed
  • Up to 12 MPH speed, 15 percent incline
  • 8 preset programs including 1-mile, 5k/10k courses, 1 heart rate, 1 manual, 1 weight loss
  • Compatible with wireless heart rate monitors; handheld monitoring not included
  • Lifetime warranty on frame, 10 year on parts, 1 year on labor

The Precor Premium Series 9.31 Treadmill is designed for long-lasting performance, quiet operation, and hassle-free workouts in a domestic environment. Its innovative design adjusts the belt speed to match one’s foot speed in turn complementing and supporting the natural running stride. It packs 8 workout programs and advanced options, which allows customizing workout and following any progress made. Furthermore, it has a unique suspension system that drastically reduces the impact on the joints and increases comfort, thereby, minimizing fatigue during workouts. And finally, the 15 percent incline helps spice things up when you have topped its speed limit.

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Noise & Space: 4/5

This treadmill is powered by a 3.0 HP continuous-duty motor, which remains quiet during workouts. The machine does not rattle nor shake while jogging or even moderate running. We believe its heavy nature actually helps attain some stability. Precor recommends having a professional assembly and installation of this exercise machine, though we were able to assemble it ourselves, with the help of friends by using the provided allen wrenches. But it takes a good hour, depending on manpower, to finish.

Workout Features: 5/5

The 9.31 Precor provides the most comfortable and convenient workout setup. In fact, we found it easy tinkering with every preset program with the exception of the random mode – bit more randomness would have been nice.

It is designed to complement and support one’s natural stride in order to minimize fatigue while walking, running, or jogging on the treadmill. It features a cushioning system which reduces impact on our joints. The machine has an options menu to choose a customized workout, and it has an incline of 0-15 percent for those wanting to push themselves further.

Precor 9.31 Treadmill Review Video:

Precor 9.31 Treadmill

Motor & Horsepower: 5/5

The treadmill is powered by a 3.0 HP continuous-duty motor. While it is quiet, it still manages to power the machine at all speeds, getting the job done for serious runners who want more performance than us commoners – the motor does not produce unnecessary sounds and does not cause any distraction.

Ease of Use: 4/5

Starting the Precor 9.31 treadmill is as easy as a push of a button. Its safety features include a magnetic safety key and stop button, which will immediately turn off power when activated. You can lock or unlock the machine by using its password protection capabilities although every time the unit restarts you have to give it your weight and height parameters for any of the programs to work. We are still trying to figure out if this is a console glitch or if it exists across the entire 9.31 range, more on that in future posts. Moving on, the console is easy to read and the control¬ keypad is pretty user-friendly.

Running Belt & Deck: 4/5

Precor Premium Series 9.31 Treadmill uses Ground Effects Impact Control that absorbs shock at the point of impact limiting the spread across all joints in action. It utilizes individual shock absorbers to provide cushioning. The treadmill’s running surface is 22 x 56 inches which is enough for a good walk or a jog. The Integrated FootPlant Technology helps naturally adjust belt speed to match the speed of your feet ensuring a regular natural stride.

Extra Features: 5/5

This treadmill has so many extra features that differentiate it from other treadmills in the market. Firstly, a powder-coating process adds cosmetic topcoat to the frame making it durable. Secondly, it features an integrated fan, and an accessory holder for water bottle and reading materials. Thirdly, this treadmill is compatible with heart rate telemetry reading monitors and uses wireless chest strap transmitters for the purpose. And finally, it has a full range of workout programs and advanced options to help customize one’s workout to fit individual unique goals.

Features and Specifications:

  • Integrated Footplant Technology adjusts belt speed to foot speed in order to
    complement and support natural stride.
  • Ground Effects Impact Control System cushions impact on joints.
  • Powered by 3.0 HP motor which is very quiet.
  • It has 8 workout programs that help customize workouts.
  • It can accommodate users weighing up to 335 pounds.
  • The running surface is 22 x 56 inches.
  • 15% incline and up to 12 mph speed.
Precor Premium Series 9.31 Review
Noise & Space
Workout Features
Motor & Horsepower
Ease of Use
Running Belt & Deck
Extra Features
Reader Rating0 Votes0
This treadmill has an accessory holder for water bottle, portable music player, and reading material.
Provides feedback on heart rate and calories.
Lacks memory function hence, users have to manually input age and weight at each start-up. Pricey too!
Precor Premium Series 9.31 Treadmill is designed to be a low-impact treadmill. It utilizes the Ground Effects Impact Control considered as one of the premium impact reducing mechanisms in the market, and the Integrated FootPlant Technology to complement and support one’s natural running stride. Based on these two features alone, we believe the 9.31 is ideal for just about any user.

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