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XTERRA Fitness TR6.6 FoldableTreadmill Review – VerellenHC

The Xterra TR6.6 is generally more affordable than other models and cater to the needs of those who live in smaller apartments where every bit of space counts.

Folding treadmills like this model can be, as the name implies, folded up to take up less space than they do when installed. This enables the owner to store them easily under beds or in closets.

Our Rating

Detailed Review of Xterra TR6.6 Treadmill

Durable and Feature-Filled

It is essential to keep in mind that while the TR6.6 is one of more feature-filled Xterra treadmills, the device’s durability and functionality comes at the price of weight.

We have analyzed the frame and deck, and have compared them to those of products from other manufacturers. The TR6.6 is considerably sturdier regarding build; however, it is also heavier. While it can be moved around by a single person, doing so is difficult.

Key Specifications

  • 20” x 60” belt – The belt allows the user to walk or run comfortably regardless of speed.

  • Backlit display – All the information regarding the exercise routine and the condition of the user, such as heart rate, speed, and calories is displayed on a wide 7.5-inch display that comes with backlighting.

  • Lift assist system – The lift assist mechanism helps the owner fold up the treadmill without any effort.

  • Handlebar commands – The commands that control the speed and incline of the device are conveniently placed on the handlebars.

  • Powerful motor – A 3.0 CHP motor powers the treadmill.

  • Console-mounted fan – A fan is placed on the lower side of the console and directed towards the user to minimize sweating and increase comfort.

  • XTRASoft Cushioning system – The deck comes with several points of cushioning that distribute impacts equally to absorb as much force as possible.

  • 15 % incline – The incline can be raised to a maximum of 15 % to provide a more challenging workout.

  • Non-slip side rails – The side rails are made from aluminum and are textured to prevent the owner from slipping.

  • Heart rate monitor – The model comes with a heart rate monitor that can be strapped to the user’s chest and communicates with the Xterra 6.6 treadmill through Wi-Fi.

  • MP3 Speakers – There are two powerful speakers integrated into the control console. These can play music from phones, tablets, or other devices that can be plugged in using a standard headphone jack.

  • Easy to use – The console is intuitive and responsive when changing the workout settings or displaying data from the heart rate sensor.

Why Should You Consider Xterra TR6.6?

Xterra treadmills brand has over 30 years of experience in designing sports equipment and workout devices. This can be seen by the fact that all the features included in the TR6.6 are designed to improve performance and comfort while using the treadmill.

Also, with a 15% maximum incline, cushioned deck, a cooling fan, great speakers, and a powerful motor, the model is great for those who do not have access or time to go to a park.

While there are always more expensive and feature-filled models, we feel that this one offers all the functionality that a home user could ever want.

The TR6.6 assembly process is extremely simple and does not require more than one individual, or technical skills, and the controls are intuitive and straightforward.

Things Not Mentioned in Most Reviews Of The Xterra Treadmills

The TR6.6 treadmill goes beyond simply offering owners the basics required for a good workout. The manufacturer has included a large number of features without sacrificing its ability to fold to occupy less space.

While this type of design requires a lighter frame, Xterra treadmills used extremely durable materials and has integrated as many quality-of-life features as possible.

We have noticed that most reviews tend to miss the fact that the folding up process is much easier than with other models, due to a lift assist system. This makes it great for individuals who have suffered accidents and need to work out to regain the strength of their muscles or the elderly.

The lifetime warranty for the motor and frame should also be mentioned, as there are very few manufacturers that offer this guarantee. While other Xterra treadmills parts may slowly decline over time, these would have been the most expensive to repair or replace.  

The Pros and Cons


  • Silent motor – While powerful, the treadmill’s motor barely makes any sound, which is excellent for those who like to work out at night.

  • Easy to change the settings – The fact that the speed and incline controls are mounted on the handlebars makes it extremely easy to change the settings without losing focus.

  • Accurate chest monitor – The chest monitor is great for those who keep the settings at a higher speed as it does not require to hold the handlebars like with other models that do not have a sensor that can be strapped on.

  • Built to last – The treadmill is exceptionally durable for a device designed for home use.

  • Silent – While there are no completely silent treadmills, the TR6.6 produces little noise, making it an excellent choice for those who like to work out in the evening or at night.


  • Heavy – While the treadmill does fold up, it is heavy and difficult to move around the house.

  • Limited workout presets – The treadmill only comes with 7 workout programs. These do cover several types of routines. For those who like diversity may not be satisfied.

Frequently Asked Questions

1. Does the treadmill come with any program designed to work with the heart rate monitor?

Yes, there is a program that adjusts the speed and inclines depending on what data is received from the sensor.

2. Can I save my program routines?

Yes, the console can be used to save two different workout programs.

3. Does the model come with wheels?

No, the treadmill must be lifted to move it to another place.

Final Verdict

Xterra TR6.6

Our Rating
XTERRA Fitness TR6.6 review

Our final verdict is, the XTERRA Fitness TR6.6 is durable and can last for over ten years if properly maintained. At this point, it is one of the best models from the manufacturer.

It comes with a lot of features that are designed to make workouts more enjoyable and a great system that helps fold the device up more easily.

While it is one of the heavier foldable treadmills out there, (somewhat difficult to move around the house), the device takes up very little room when folded up. It is excellent for those who have limited space. However, those looking to buy one should try to find a permanent place for the treadmill.

For its many features and its durability, we rate this model 4.2 stars out of the possible 5.

    Elle Lori

    Hi, Elle here. I am a simple girl that loves gymnastics, cooking, fitness and of course, pampering myself with a good massage after a hard day at work. As a creative copywriter, I combine my passion mentioned above to develop reviews and content to help my readers get what they want.