ProForm 505 CST Treadmill Review (Worth The Price Tag?)


In this article on ProForm 505 CST Treadmill Review, you will find out everything from A-Z on this treadmill, which costs under $600. The 505 CST is one of the best treadmills in the industry that is under the price tag of $600. By the end of this review, you will be able to decide whether or not if this treadmill is for you.

When you’re planning to buy a treadmill, like the ProForm 505 CST, it is better to read the entire review. However, if you don’t want to read the whole review, then that’s completely fine as well. You can read the crucial sub-topics by making use of the Table Of Contents.

Without further ado, let’s jump right into the review!

What is the ProForm 505 CST Treadmill?

The ProForm 505 CST Treadmill is a cost-effective cardio machine that was released by ProForm in 2016. It is quite popular in the market because of its affordability, the features it contains, and mainly due to its folding feature.

Beneficial fact is that the 505 CST comes with a long-term warranty, and its durable motor system comes with a jaw-dropping 25-Year Warranty.

Moreover, it contains 18 workout apps that help you to reach your fitness goals a lot faster. You can save money on your gym membership if you own this treadmill. The only concern is that it contains a 20″ x 55″ Tread Belt. You will come across all these features as we move along.

Watch the short 2-minute video on the ProForm 505 CST Treadmill.

==> Get Your ProForm 505 CST Today!!!

Top Features

  • iFit® Coach Ready™: Enjoy an expansive collection of live workouts with iFit. As an iFit membership, you will have access to your very own personal trainer who will assist you in reaching your fitness goals. Besides this, you can also join in group workout classes along with fellow peers. If you have iFit on your tablet and connect it to the treadmill via Bluetooth, the treadmill will automatically adjust the incline according to the route that your fitness trainer takes you. When you purchase the 505 CST, you might get the first month for free, but the subscription fees for iFit are on iFit’s Website.
  • 20″ x 55″ Tread Belt: Since you’re going to workout at home, the experience which you get from this treadmill should be an enjoyable one. Therefore, ProForm designed a spacious deck that can help you run freely. The 55-inch provides plenty of room for the legs; whereas, the 20-inch ensures that you have enough space to move your elbows. ProForm tests each Tread Belt for 1 Million Cycles at double the user weight so that it stays maintenance-free.
  • SpaceSaver® Design: If you live in a studio or a 1 Bedroom apartment, it can look quite congested when the treadmill occupies much of the space. As a result, ProForm came up with a solution. They incorporated a feature that helps you cut down all the hassle by folding the treadmill. Yes, that’s right! Once you’ve finished with your workout, you can fold the treadmill and keep it in a corner so that the house looks clutter-free.
  • 0 – 10% Digital Quick Incline™ Control: Would you like to burn more calories within a short period? If so, then increasing the incline of the ProForm 505 CST will allow you to do that. I’ve previously mentioned that the treadmill will adjust the incline automatically when you workout with your personal trainer. However, you also have an option to set it up manually by yourself. The inclination is a game changer because it prepares your body for challenging uphill routes.

Notable Key Specifications

Take some time to view the tablet below that contains Key Specifications of the ProForm 505 CST Treadmill.

Product Name ProForm 505 CST Treadmill
Cost $599.00
Display 5” Backlit Display
Weight Capacity 325 Lbs (147.4 Kg)
On-Board Workouts 18
Motor 2.5 CHP
Tread Belt 20" x 55"
Gradient 0 - 10% Incline
Footprint 61” x 36.5” x 73.5”
Warranty Lifetime Frame Warranty, 25-Year Motor Warranty, 1-Year Parts & Labor Warranty
Best Place To Buy

The Good

In this section, we will go through the additional Specifications & Features which were not mentioned in the Top Features as well as the Table displayed above. You can also consider them to be the Pros of the 505 CST Treadmill. Let’s proceed with the journey!


It is essential to have all the workout stats in hand when you train, so you’ll know whether or not you’re on the right track. The 5″ Backlit Display permits you to check out several workout stats like Speed, Distance, Time, Calories Burned, and Heart Rate.


As soon as you step on the ProForm 505 CST, you will have instant access to 18 On-Board Workouts. These workout programs are designed by certified fitness trainers. Following these workouts every single day will take your fitness to a whole new level.

Heart Rate Sensor

How cool would it be to see your heart rate reading on the display screen? You will be able to see it live with the EKG Grip Pulse Heart Rate Sensor. These sensors are built into the handlebars of the treadmill. To see the reading, all you have to do is to hold the grips at the right spot.


The 2.5 CHP Mach Z™ Commercial Plus Motor is a robust motor system that aids the 505 CST to function smoothly by creating high levels of inertia. Since you’re going to workout at home, the treadmill keeps the noise to a minimum. No matter how vigorously you train, the machine always stays cool on the inside.

The most beneficial part is that it comes with a 25-Year Motor Warranty. If maintained well, you might not even encounter any issues because it’s engineered from high-grade components.


Not everyone is born a natural sprinter. Nevertheless, the ProForm 505 CST offers 0 – 10 MPH Digital QuickSpeed® Control. Even if you run at 10 MPH, the machine can totally handle it due to its bigger motor size and faster flywheel gear ratio.

Another positive aspect is that your electricity bill won’t shoot up because this treadmill contains an in-home efficiency booster. In addition, the QuickSpeed® buttons allow you to change the intensity of the workout instantly.


It can be quite hard for a person to start working out on a treadmill who has never used one before, or can impact someone who spends a lot of time on a treadmill. The ProShox™ Cushioning gifts you with a soft landing so that it doesn’t have a negative effect on your knees, ankles, hips, and feet.

When you just finished a grueling session and would like to get ready for the next one, this cushioning assists you by providing faster recovery.

Tablet Holder

Fitness can be fun when you have entertainment on the side. With the Integrated Tablet Holder, you can fix your tablet in a particular position and watch your favorite TV Show/Movie while working out. This holder can be advantageous for people who spend a long time exercising.


Do you have an iPod or an MP3 Player? Then why not plug into the 505’s Audio Auxiliary Port to listen to high-quality music? With the in-built dual 2-inch speakers, you can now hear music with fewer complications.

Experts say that we tend to increase or decrease our pace to match the tempo of our tunes. Plus, music has also been proven to lower perceived exertion.


A quality product is all about details. Therefore, ProForm came up with the 1.9″ Balanced Rollers to keep the 505 CST Treadmill balanced. These medium-sized rollers decrease tension, reduce noise, and keep the wear and tear to a minimum.

The Bad

Along with the positive features, the ProForm 505 CST Treadmill has its own drawbacks. In other words, these are the Cons of the treadmill.

Tread Belt

Usually, the most spacious size for the Tread Belt should be 20″ x 60″, not 20″ x 55″. Do you see the difference? The length is supposed to be 5 inches longer. Nevertheless, if you’re a tall person, then I’m afraid that the 505 CST might not be the perfect fit for you.

To be more precise with the numbers, I wouldn’t recommend it for users taller than 6’2 (187.96 cm). However, you can check other treadmills at Exercise Grid that have a 20″ x 60″.


The maximum speed that this treadmill offers is 10 MPH. It would’ve been a lot better if they made it 12 MPH instead. This speed makes it hard for high interval speed training. Do keep in mind that the units are in MPH (Miles Per Hour), and not KPH (Kilometers Per Hour).

This treadmill is best for walkers/joggers/runners and maybe for sprinters. Although there is a standard spring speed, it is different for every single human being.

Customer Service

No equipment is perfect in any way, but it all depends on how well you maintain it. In case if something goes wrong with the ProForm 505 CST, it’ll take some time to get it fixed because ProForm has a slow Customer Service. It takes time to get the parts fixed and stuff like that.


There’s no doubt that the ProForm 505 CST is one of the most affordable ProForm treadmills, and there’s no reason as to why you shouldn’t purchase it. But make sure that you’ve spent time reading “The Bad” to see that you meet certain height requirements and are aware of other problems.

It is pretty rear for a ProForm treadmill to be under the price tag of $600. Moreover, the 505 CST Treadmill is something which can be folded. This folding feature is what makes this particular treadmill one of the most affordable treadmills for home use.

If you are looking for a different model or any other fitness equipment, then take time to explore other options that are available at Exercise Grid. Even if you don’t like this machine, I’m quite sure that there’s something else.

In case if you think that this review has helped you, please share it on Social Media so that it can help others who are looking for an affordable treadmill. Do not hesitate to use the comments box to submit any questions. I’ll be more than happy to help you with anything that you might need.

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