• Cart
  • (0)

FREE Shipping on all Orders | 60-Day Satisfaction Guaranteed

TR4000i Folding Treadmill

Rated the #1 treadmill by Health Magazine and featured in Runner's World, the folding TR4000i is a solid, durable and stable treadmill that supports serious runners. The 20" by 60" running surface is supported by a 1" deck and eight compression shock absorbers to provide cushioning that is safe for your knees, back and joints. To help track your workout, this treadmill automatically records your exercise data to a USB storage device. After your workout, simply upload your data to the LifeSpan Fitness Club, a comprehensive online health management program -- one free membership is included with your purchase.




You may also be interested in the following product(s)


60 inch long running surface

Comfortable, Spacious Running Surface

The spacious running surface is 20" by 60" and can accommodate extra-long strides. The coarse textured, 2.8mm thick orthopedic belt and 8 compression shocks provide support, cushioning and excellent traction for more serious runners. The result? A more comfortable running surface that puts less stress on your joints.

Console lighting system

Intelli-Key Console Lighting Feature

The Intelli-Key™ is a smart lighting system to quickly and easily get your workout started. Each console button flashes in blue in the proper sequence during the set-up process so you can get moving, faster.

Intelli-Guard Safety Feature

The built-in Intelli-Guard™ automatically stops the belt if you step off during your workout for added safety and is a major development in protecting treadmill users and those around them. With Intelli-Guard, you no longer have to worry about leaving your treadmill running if you have to step off to step off. When your foot no longer continuously strikes the belt surface for 20 seconds, your treadmill will automatically pause.

Intelli-Step Automatic Step Counting Feature

Intelli-Step™ counts and records the number of steps you take and displays them on the console. More accurate than a pedometer, Intelli-Step automatically detects the impact of your foot striking the treadmill belt. Increasing step count is one of the foundations of the American Heart Association’s recommendations for improving heart and overall health.

Console displaying steady pace program

17 Preset Treadmill Workouts

Designed by exercise physiologists for optimal safety and effectiveness, our 17 preset treadmill workouts help you achieve your goal, whether it be weight loss, general health improvement or sports training. The TR4000i also offers 2 MyZone heart rate control programs and 2 customizable programs. With the MyZone constant program, you keep your heart rate at a constant level throughout your workout while the MyZone Interval program allows you to enter your own minimum and maximum heart rate. The treadmill automatically adjusts incline and speed to keep you on target.

Console silicone buttons Large Console Buttons

The soft-touch, oversized silicone buttons make set-up a breeze and are ideal for making changes to your program while you are moving. You don’t have to struggle to hit the correct button.

Belt Size 20" W x 60" L (50cm W x 150cm L)
Drive Motor 3.25 HP Continuous Duty DC
Belt Type 2.8mm Upgraded Thick Belt
Incline Motor 800 lbs. (363 kg) maximum lift
Rollers 2.5" (6.24cm) Front, 2" (5cm) Rear
Speed 0.5 - 12 MPH (0.8 - 19.3 KPH)
Incline 15 Levels
Deck Suspension 8 Variable Density Elastomers
Deck 1" (2.5cm) Phenolic
Folding System EZ-Drop
Side Rails Aluminum Side Rails
Dimensions 74.25" L x 33" W x 55" H (185.63cm L x 82.5 W x 137.5cm H) Full
42" L x 33" W x 66" H (105cm L x 82.5 W x 165cm H) Folded
Step-Up Height 8" (20cm)
Max. User Weight 350 lbs. (158.7 kg)

Residential Warranty

Frame: Lifetime

Motor: Lifetime

Parts: 5 Years

Labor: 1 Year

USB Port USB storage device automatically saves your exercise data so you can upload it to your online LifeSpan Fitness Club account.
Audio Center Speakers and headphone plug-in.
Heart Rate Monitor Contact heart rate sensors and chest strap receiver (chest strap included)
Easy to Use Large soft-touch keys — Start, Enter, Up/Down arrow keys and Quick Start buttons get you started at a specific speed and incline level.
Readouts Time, Calories, Distance, Steps, Heart Rate, Speed, Incline Level.
Display Area Multi-color LCD with simultaneous readouts, exercise program name and profile, and personal data from your LifeSpan USB storage device.
Intelli-Key Intelli-Key™ Illuminates each console button to press in the proper sequence, to get your workout started.
Intelli-Step Intelli-Step™ step counting feature works like a pedometer and counts your steps while you walk.
Programs 2 heart rate programs, 2 customized user programs and 17 preset programs (5 weight management, 5 healthy living, 7 sports training)

Whether you want to lose weight, train for a sporting event, or simply maintain a healthy lifestyle, the LifeSpan Fitness Club provides the tools, structure and support you need - ONE FREE MEMBERSHIP INCLUDED


Upload to Your Account with a USB Flash DriveLifeSpan Fitness Club USB upload

An online LifeSpan Fitness Club Membership is included with each interactive treadmill. This account includes a free software program that synchronizes your account with your equipment. The first time you use this program it loads your first name, age and weight from your account onto the USB drive. When you insert the USB drive into your treadmill, the console reads this information so we can more accurately calculate calories burned. Then as you exercise, each 20 seconds we save your results onto the USB drive. You can then load the results into your account each day, once a week or whenever you choose using the same program.


Click to buy additional memberships

Available Warranty Options

  • 3 Year Warranty Plan
  • 5 Year Warranty Plan

Get the most out of your product with our no-hassle extended warranty. At LifeSpan we know our high quality products will last you for years to come, but we also understand product wear and tear and want you to have peace of mind. Choose the plan that works best for you from three or five years of protection. This covers 100% of the parts and labor for services related to: no lemon guarantee, manufacturer defect, mechanical failure, electrical failure, power surge and failure resulting from normal use. View warranty details.

  1. Smooth Run Review by Jana

    I purchased the TR4000i this weekend after doing lots of online and in-store research on treadmills. I had it loaded it into my van and brought it home the day of purchase. It was VERY easy to assemble and get running. This machine doesn't have a lot of bells and whistles, but is sturdy, quiet, well made, and felt great to run on. I was impressed with how nicely it was built, and liked how it wasn't big and bulky like some of its competitors. I wanted to be able to look over the council and watch TV while working out, and not have a giant council in my face.

    Why I gave it 4-stars: I do wish it had a tiny bit more for options on the council. I like being able to add time onto a workout on the fly or a button for "cool-down" to end a workout sooner, it lacks this ability. I am also used to seeing how fast my running pace is when changing the speed, I really miss this. I don't like how you have to plug in a USB and take it to a computer to keep track of workouts. I wish there was a LifeSpan app and I could connect it to my smartphone instead.

    Overall I am happy with my purchase. (Posted on 3/3/14)

  2. Former Fitness Club Manager and Fitness Enthusiast (Posted on Jan. 10, 2013) Review by BullsFan

    I will try to keep this review as straight to the point and concise as possible.

    This is a great treadmill for the money. Here are a few quick pros about the unit:

    1. Unit is very sturdy

    2. Quality build and easy to assemble

    3. Powerful motor

    4. Fitness club look and feel

    5. Very quiet motor, incline and running surface

    6. Easy to read display (not loaded with gimmics that don't work)

    7. 60" running surface (4000i model)

    The list can go on, but this covers the most important aspects of it. This unit is heavy, but that isn't a bad thing. The run on this treadmill feels comparable to that of the $6,000 Life Fitness units we used at the fitness club I managed. Do yourself a favor; spring for the 4000i if you can. The metal side rails are a high-end finish and the 60" running board is a must if you are over 5'10". I am 6'2" 210 lbs and I wouldn't have had such a good experience with a 54" running surface. It requires only 72" of clearance from front to back.

    Whether you are a fitness novice or a fitness enthusiast, take a very serious look at this model. It wins awards for a reason and has a lifetime frame/motor warranty. Well worth the piece of mind in my opinion. (Posted on 7/16/13)

  3. Solid Treadmill Review by S. Patel

    I purchased the treadmill from a local retailer. Initially, I didn't see any independent user reviews on it so, I thought i would post something. My Projected running usage - Probably 2-3 X a week - average maybe 2 hours / week of running total.

    The treadmill has a 20x60" belt with a 3.25 hp motor. Haven't seen any other in this price range with a motor like this one. Although they call the belt orthopedic, I don't think it is particularly thick - but seems fine. Overall, it feels pretty stable and solid (no shaking or motion). The cushioning isn't quite as good as the gym treadmills, but for the $ it's perfectly fine.

    I very much like the user-friendliness of the treadmill. It has large well lit buttons, that are very straightforward and easy to use. I like the buttons a lot more than the standard flat buttons you find on most treadmills. My only concern is the durability of the panel. The display is well lit and clear with a lot of nice information - of course it has the standard stuff like incline level, time, heart rate, calories. But it also displays not so standard stuff, like number of steps, age, height, weight (more on this later).

    The treadmill programs work a little differently than most of the gym treadmills I have used. They several programs grouped in several areas (e.g. weight loss, sports training, healthy living, etc.). You can select "incline" program or "speed" program for any of the programs. In terms of speed/incline variability - the treadmill pretty much works like any standard gym treadmill - e.g. If you select incline program, the incline will adjust (up and down), while your speed remains constant. Selecting "speed program" adjusts the speed up and down while the incline remains constant. Also, adjusting the incline during the incline program will increase or decrease ALL of the incline levels for the entire workout. The equivalent is true for the speed programs as well. Some treadmills only adjust the bar or "time period" that you are currently in.. I actually like this feature on the 4000i.

    I am not sure how these programs were chosen to be in a particular group (e.g. I would like what makes "pyramid climb" healthy living vs. cardio run for weight loss. All of the programs are clearly explained in the manual - i.e. you can see the duration and the level of incline (for incline programs) for each minute of the program (a nice touch!) and the equivalent for the speed programs.

    The user defined programs are pretty standard and easy to setup. You can go thru each minute/bar, and change it to the level/speed that you want. The heart rate monitor works really well! The accuracy seems good and it doesn't take a lot of fiddling.

    One item that I miss from the gym treadmills is the random feature. It would be nice if it could generate some random incline and/or speed programs.

    Another item that I noticed was missing (or at least I can't figure it out) is a way to change the duration/time in the middle of a program?! You can set the duration at the start, but once the program start, you can't change the time/duration of your workout. It seems a little bizarre to me that you can't do this, but it's not a deal breaker.

    Ok, one of the big selling points for me was the ability to record and track my work outs and upload them to their system via the USB drive. You can record, the date and time of your workout, with frequent sampling (every 20 seconds, I think), of your heart rate, minutes, calories, distance, steps. I think the concept is terrific - and I like that they were able to include this feature in a cost effective treadmill. However, the implementation is lacking. So, uploading the data, and it does work. However, the website is user-unfriendly, and poorly implemented. Firefox support? nope! you have to use IE. It was developed using 1990's web technology and navigation. So much so, that I am wondering if any of their customers actually use it?? I am a web guy so I guess my standards are higher... The site very much needs an overhaul and update. I won't go into a lot of detail, but here are a couple of quick things about it.

    1. Clicking on any of the links (e.g. Weekly View, Today's Workout,USB Update,Manually Log Exercise,Update Vital Stats) gives you a pop up. You wait several seconds for each popup to occur, then you can do whatever function you are looking to do - Totally unncessary and annoying.

    2. The "analyze my exercise" is just not formatted well and therefore not easy to follow - the info is all there, just not user friendly and clean. It would be pretty easy to make this graphical and easy to use.

    3. Dates - For the life of me, I can not figure out how to set the current date on the tread?! The default date on the treadmill display is always some date in May?? Is the factory set date? When I plug in the usb drive into the treadmill, my weight and height changes correctly, however, the date does not change. It always records that random May date on my usb drive. I just do a global replace manually on the dates using my PC before uploading the myexercise site - there must be something I'm not doing right.

    4. My exercise profile. I am assuming since I filled all of this out, that it would create some customized workout for me. It would be nice to have some kind of intelligent recommendations based on all of the stats, supplements, health history that I put in. I still haven't been able to figure it out.

    Again, great idea for the website, poor implementation. My thought that this was done more for marketing purposes than to actually serve their client needs. - i.e. mostly vaporware. Thus, don't make a decision to buy this treadmill based on this feature. The good news is that the treadmill works quite well, with other great features.

    The speakers are average, but they are what I would expect for any treadmill. The arms have both incline and speed control - (another nice touch) - however, the buttons on the arms are easy to bump and change if you are the kind that likes to rest your hands on them (for heart rate, etc.).

    So far, I am pleased overall with the treadmill.

    The biggest concerns I have -
    - durability (not a lot of reviews on lifespan treadmills, folding treadmill - what tradeoffs were made to make it folding.
    - We'll see in a few years. Ideally, I would like to have it last at least 5 years. I am planning on silicone lubing the belt every 50 hours of use and cleaning around the motor and electronics as the manual indicates. I am assuming that this is standard? for most treadmills in this categories.

    Happy Treading! (Posted on 7/16/13)

  4. TR4000i Review by karthik

    The best model even after 10 years of usage, because it has the life time warranty, so we don't want to spend huge money in replacing the motor. (Posted on 4/4/13)

  5. Excellent Product. Review by PMA, NY

    My old treadmill died after 10 years of service. I did quite a bit of research and narrowed my choices down to two. I found the Lifespan product had a better motor and a longer warranty. I phoned Lifespan and spoke to an associate Bryan, who in turn gave me a great deal on a Lifespan TR4000i. Delivery was prompt and I chose to set up the unit myself which was a snap. The TR4000i is a solid piece of equipment the cushioned deck is awesome on my aging knees. Not only is the unit quiet but it provides a stable platform to get a quality cardio workout. My wife and I could not be more pleased with our purchase.Do yourself a favor and purchase a Lifespan product you will not be sorry. (Posted on 4/4/13)

Write Your Own Review

You're reviewing: TR4000i Folding Treadmill

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars

Shipping & Delivery Options

LifeSpan wants to make sure your products arrive safely and quickly. We do our best to provide you with delivery options that will best suit your needs. All delivery options are listed below with a brief description for each.

We feel the best value for your money is our Room of Choice Delivery. We make our products easy to assemble even easier to get started, but because they are heavy we recommend having them delivery to the room of your choice.

If you are wanting to ship to Alaska, Hawaii, or Canada OR if you have any other questions on the options below, please give us a call at 801.973.9993 x 128 and a representative will be happy to assist you.

All products generally ship within one to two business days and will be delivered in five to ten business days.

Available Options:

Standard Delivery

UPS/USPS Shipments: UPS and USPS shipments will follow their standard protocols for package deliveries. It is up to the discretion of the driver whether a package is left when no one is home. If the driver feels that the package could be stolen or get damaged based on your location or weather conditions the driver will not drop the package but will leave a first attempt notice. The driver will make three attempts with notices on each attempt and then return the product to the distribution center to be held for the customer to pick up. After seven days the shipment is considered undeliverable and will be returned to the shipper.

Curbside Delivery: Delivered to the curb or driveway. The customer is responsible for moving the product from the point of delivery to the garage or room where the product will reside. The drivers are not responsible for placing the product inside the garage or home. LifeSpan will not be responsible for rain damage or stolen product if the product cannot be moved to a dry, secure location. Since most equipment weighs over 175 lbs., if a second person is not available to help move the product to the home a better option is Inside Delivery or the best option is Room of Choice Delivery.

Inside Delivery - $49

Large items ship via motor freight and will be placed in the garage or the first available ground level door. This does not include room of choice or any steps. Since your product is being shipped via freight carrier you will be contacted by phone to schedule a delivery time since this shipping method requires a signature.

Room of Choice - $99

Delivered by a freight carrier with lift gate, two delivery professionals will place your product in the room of your choice. Rooms can be up/down two flights of stairs only, additional flights will be charged an additional $15 per flight. This is our recommended service option since the assembly process is quite basic for most LifeSpan pieces of equipment.

White Glove Service - $199

This is our highest quality shipping service, leaving all the work to us so you don't need to lift a finger. The complete White Glove Service includes:

  • Delivery of the product to your home
  • Placement in the room of your choice (up/down two flights of stairs)
  • Unpacking and removal of debris
  • Assembly

This service is sometimes a two-step process that may require two separately scheduled appointments.

  1. Delivery and removal of packaging
  2. Product assembly may require a certified LifeSpan technician to come to your home and assemble the product that was placed in your room of choice by the delivery team.

Depending on the product you purchase, it may take one or two separately scheduled appointments. Items that only require one-step in this process are the TR200 Treadmill and all Treadmill Desks and Bike Desks (ConfigureDesks will be a two-step process). These units will be assembled by the delivery team.

Please wait...