Features

There’s No Limit
20” x 55” Tread Belt
Because your in-home workout experience should be a comfortable one, ProForm® designed a roomy deck so you won't feel confined as you walk, jog, and run.
The 55-inch length gives your legs plenty of room to get moving. And the 20-inch width allows your upper-body comfortable elbow room. To ensure our treadmills are top quality, we test each belt for one million cycles at double the user weight before release.
- Roomy Deck Area
- Maintenance-Free Tread Belt

Simple, Hassle-Free Storage
SpaceSaver® Design
We know you like your house to be clutter-free. So we invented a treadmill that folds up and out of the way when you’re finished with your workout. It totally rocked the fitness industry; but honestly, we’re just glad you don’t have to sacrifice your living space for your fitness habit anymore.
- Folds in Seconds
- Safely Locks into Place

Do More in Less Time
0 – 10% Digital Quick Incline™ Control
We consider incline training the treadmill game changer—you can literally prepare your body for those challenging uphill routes.
The ProForm® 505 CST offers powered, automatic incline adjustability. When you train with incline, you know you're giving your legs the best workout possible on a treadmill.
- 0 – 10% Incline Range
- Motorized, Instant Adjustability
Specs
iFIT® Enabled, 30-Day iFIT Family Membership Included1
Engage in a whole new fitness experience as certified personal trainers take your exercise around the world while automatically adjusting the speed, incline, and decline on your machine.
5” Backlit Display

We know when you’ve made up your mind about getting fit, you mean business. So we made sure your workout stats are right in front of you as you work out. That means you can watch your mileage, speed, calorie burn, heart rate, and time add up.
18 On-Board Workouts
After years of hard work and innovation, we figured out how to make your fitness experience convenient and simple. When you step on the deck of a ProForm® treadmill, you get instant access to professional training programs fully loaded and ready to go. Now you can enjoy a challenging workout focused in on your goals.
EKG Grip Pulse Heart Rate Sensor2
Grab ahold of in-the-moment heart rate monitoring. These two hand-grip sensors are conveniently built into the handlebars. In a couple seconds, you’ll be able to see your heart rate while you train.
2.5 CHP3 Mach Z™ Commercial Plus Motor
Choose the motor that will run with you from Chicago to Cape Town. Smooth. Powerful. Durable. Proven. This large-frame motor stays cool through the toughest workouts; creates high levels of inertia for a smooth, powerful feel; and promises a quiet in-home experience. Great for heavy use, this motor is built with high-quality components.
20” x 55” Tread Belt
Because your in-home workout experience should be a comfortable one, ProForm® designed a roomy deck so you won’t feel confined as you walk, jog, and run. The 55-inch length gives your legs plenty of room to stretch out your stride. And the 20-inch width allows your upper-body extra elbow room. To ensure our treadmills are top quality, we test each belt for one million cycles at double the user weight before release.
0 – 10 MPH Digital QuickSpeed® Control
Not everybody runs at 10 miles per hour, but it’s nice to know this treadmill can totally handle it. Thanks to a bigger motor size and faster flywheel gear ratio, the ProForm® 505 CST rocks a top speed of 10 mph. Our in-home efficiency booster means you can run every day without using excessive amounts of electricity. And the convenient QuickSpeed® buttons let you adjust your intensity instantly, so you can stay focused through every step of your workout.
0 – 10% Digital Quick Incline™ Control
We consider incline training the treadmill game changer—you can realistically condition your body for those challenging uphill routes. The ProForm® 505 CST offers powered, automatic incline adjustability. When you train with incline, you know you’re giving your legs the best workout possible on a treadmill.
ProShox™ Cushioning

One of our top goals is to provide you with a comfortable workout. Every treadmill we release is equipped with cushioning throughout the deck area. So as you walk, jog, or run, you’ll have a softer landing with every step. With less stress on your feet, ankles, knees, and hips, you’ll be able to enjoy a longer workout and faster recovery time. It’s one reason why people love their ProForm® treadmills.
SpaceSaver® Design
We know you like your house to be clutter-free. So we invented a treadmill that folds up and out of the way when you’re done with your workout. It totally rocked the fitness industry; but honestly, we’re just glad you don’t have to sacrifice your living space for your fitness habit anymore.
Integrated Tablet Holder

Make fitness time multi-tasking time. This device shelf keeps your tablet secure and conveniently close so you have access to all your training tools and entertainment must-haves. Tablet not included.
Audio Auxiliary Port
Plug-in to a better sound system. The included audio auxiliary port allows you to listen to your entertainment at a higher volume. Built with dual 2-inch speakers, you’ll be able to hear your music or videos with less complication. Experts have learned that we actually increase or decrease our pace to match the tempo of our tunes. Plus, music has also been proven to lower perceived exertion. That’s great news.
1.9” Balanced Rollers
We know that a quality product is all about the details. That’s why we’ve built the ProForm® 505 CST with 1.9-inch precision-machined, balanced, non-flex rollers. These medium-sized rollers decrease tension, which keeps wear and tear to a minimum. You’ll also notice less noise and better grip.
325 Lb. Weight Capacity
Built with the whole family in mind, the ProForm® 505 CST treadmill accommodates up to 325 pounds.
Warranty
We want to help you protect your investment. That’s why we try to go above and beyond with our product warranties. The ProForm® 505 CST is protected with a 10-year Frame Warranty, 1-Year Parts Warranty and Labor Warranty.
Footprint
When this treadmill is fully assembled, the height by width by depth dimensions are 61” x 36.5” x 73.5”.
1. iFIT experience shown. WiFi required. Credit Card required for activation. iFIT membership auto-renews for $39/Mo plus tax unless cancelled in advance. New memberships only.
2. Not a medical device. Many factors including your physical characteristics affect device accuracy.
3. Continuous Horsepower (“CHP”) is a term used in the treadmill industry for consumer comparison purposes. The CHP rating is measured in laboratory testing using a dynamometer, which measures the mechanical power of the motor. The CHP rating does not denote the operational horsepower of the treadmill in ordinary household use. In ordinary household use, the motor does not operate at the horsepower shown.
Comments
Free Info
Free Consultation
At ProForm®, we have been in the industry for a long time. We are a great resource when it comes to helping you choose the right product for your home—and we'd really love to help.
If you are wondering about payment options, in-home delivery, assembly and set-up, or warranty info, we have the answers. Just fill out the boxes below and we'll give you a call at your convenience.
Free Info Kit
Type in your email address if you want us to send you a free information kit.

That Work For You
Required
12 month Subscription
36 month Subscription
(Total $1095.00)
(Total $1887.00)
Other repayment periods and subscription offers are available. Please call 888-308-9616 to learn more.

That Work For You
Required
12 month Subscription
36 month Subscription
(Total $1095.00)
(Total $1887.00)
Other repayment periods and subscription offers are available. Please call 888-308-9616 to learn more.

That Work For You
Required
12 month Subscription
36 month Subscription
(Total $1095.00)
(Total $1887.00)
Other repayment periods and subscription offers are available. Please call 888-308-9616 to learn more.
NEW WORKOUTS EVERY DAY ALL OVER THE WORLD
With an iFit Coach membership on your ProForm product, you'll go around the globe with breathtaking Street View images right on your equipment console or tablet. Plus, with terrain matching technology, you'll feel every hill and dip, as if you're actually outside.
Questions? Contact our team at 1.888.742.0128 or chat with us live. We’re available Monday to Friday, 6 a.m. – 9 p.m., and Saturday, 7 a.m. – 5 p.m., MST.