ONETWOFIT OT319 Indoor Cycling Bike | Ideal for Losing Weight

The ONETWOFIT OT319 Indoor Cycling Bike is perfect for those who want to lose weight and get fit. The OT319 has a sturdy steel frame and features a 44 lbs chromed flywheel with a silent belt drive system to provide a stable and safe riding experience during exercise.

The exercise bike comes equipped with a standard manual friction resistance system. You can quickly reduce or increase the resistance by turning the red knob or pushing to stop the flywheel from spinning safely. It also has aluminum alloy cage pedals, preventing your feet from slipping and providing high safety.

The ONETWOFIT OT319 indoor cycling bike has a 4-way adjustable (up, down, front, back) padded seat. Furthermore, the soft PU cushion cushions shock absorption and reduce hip pressure, making you comfortable during exercise. In addition, the durable handlebar is 2-way adjustable (up, down) and features a multi-grip design.

Learn more in my complete review below!

ONETWOFIT OT319 Indoor Cycling Bike
ONETWOFIT OT319 Indoor Cycling Bike

Product: ONETWOFIT OT319 Indoor Cycling Bike

Price: For a great deal on this bike, merely go here to

Warranty: Not specified

My rating: is 8/10

Affiliate Disclosure: As an Amazon Affiliate Program participant, I earn commissions on purchases made through links in this post. Full disclosure

Details and Specifications

  • Assembled dimensions: 42.5L x 20.9W x 43.9H inches (108L x 53W x 111H cm)
  • Shipping weight: 98 lbs (44 kg)
  • Flywheel weight: 44 lbs (20 kg)
  • Supported weight: 330 lbs (150 kg)
  • Seat: 4-way adjustable
  • Drive system: Belt
  • Resistance: Friction
  • Fitness Monitor: Time, speed, distance, calories, scan
  • Extras: Phone holder, elbow rests

OT319 Frame Construction

ONETWOFIT OT319 Indoor Cycling Bike

The ONETWOFIT OT319 indoor cycling bike features a durable steel frame. It’s constructed on a triangular steel frame with the main tube slightly curved for improved sturdiness and aesthetics. Most of the tubes in its construction are oval, except for the cylindrical handlebar tubes and the rectangular seat slider.

It’s also important to note that the seat tube joins the main curved tube and welds to the base tube. Therefore, it considerably improves the overall structural sturdiness of the bike.

All the steel tubes in the frame come double-coated with a black paint finish. The only exceptions are the flywheel, the seat tube, and the handlebar tube, which is chrome plated. In addition, the drive belt, the flywheel’s side covers, and the fitness monitor’s casing are ABS plastic.

Like most other spin bikes, the ONETWOFIT OT319 is not a large fitness machine. It is approx. 42.5″ (108 cm) long and 20.9″ (53 cm) wide with all the parts assembled. Therefore, it can fit pretty well even in a small room. However, it still is advisable to leave at least two feet of clearance all around it for safety and ease of use.

The bike is relatively heavy, weighing approx—98 lbs (44 kg). Therefore, two people should carry and assemble the bike. However, once completed, one person can move the bike quickly as its front stabilizer features two transport wheels. In addition, both base stabilizers have adjustable levelers.

Seat and handlebars

The ONETWOFIT OT319 indoor cycling bike has a pretty decent saddle. Its top is a high-density foam material (EVA or urethane) and has contoured to provide superior breathability. Furthermore, it is also flexible and has a collar-type attachment system. Therefore, it’s easy to remove and replace if needed.

ONETWOFIT OT319 Indoor Cycling Bike
ONETWOFIT OT319 Indoor Cycling Bike

The bike’s seat is adjustable (up, down, front, back). Its vertical post offers approximately 6.2″ (16 cm) of adjustment, from 31.9″ (81 cm) to 38.19″ (97 cm) above the floor.

In addition, the top slider also adds several inches for horizontal adjustment. Thus, the bike should comfortably accommodate users between 5’2″ and 6’5″ (157 – 196 cm). It also has a maximum user weight limit of 330 lbs (150 kg) which is quite impressive for a home-use spin bike.

Unlike the seat, the bike’s handlebar assembly is only two-way adjustable (up, down). It does not have the horizontal slider feature. However, it does offer approximately 4″ (10 cm) of adjustment, from 39.9″ (101 cm) to 43.9″ (111.5 cm) above the floor.

The handlebar assembly features a multi-grip design. It offers the possibility to adopt a climbing grip, a close grip, an off-road grip, and a standard grip. In addition, it comes with a set of elbow rests so you can adopt an aero grip.

Furthermore, its side grips have a layer of PVC foam for superior contact. Unfortunately, they do not integrate HR pulse sensors, and the fitness monitor does not have a pulse reading function.

OT319 Resistance system

This ONETWOFIT OT319 indoor cycling bike has a standard manual friction resistance system. Therefore, you don’t need a power cord or a power adapter. The only power source required is a set of batteries for the fitness monitor.

The resistance system consists of a felt pad attached under the mainframe tube above the flywheel. The pad connects to the bike’s tension knob, so when you turn this knob clockwise, it applies more friction to the flywheel, increasing the pedaling difficulty.

The bike’s resistance system does not have pre-determined levels or “clicks” like most magnetic exercise bikes have. For example, you tighten the brake on the flywheel until you get comfortable. As a general idea, the pad can tighten down on the flywheel to the point where you can barely pedal.

ONETWOFIT OT319 Indoor Cycling Bike

The bike’s tension knob also has the function of an emergency brake. Thus, you can press it down to stop the flywheel from spinning. Especially if you’ve been pedaling at high speed, as the flywheel is weighty, and stopping it with your feet from the pedals may cause injuries.

One last aspect to note regards brake maintenance and replacement. Although the felt pad is durable and should last for at least a year, even with daily use, it will eventually wear out and require replacement. Furthermore, by adding a few drops of silicone lubricant on the edge of the flywheel, you can improve the smoothness of the ride.

Drive system

The ONETWOFIT OT319 indoor cycling bike has an extra-heavy flywheel. It weighs 44 lbs (20 kg), usually the flywheel weight of a club-level spin bike. It is also perimeter-weighted for superior inertia and a consistent pedaling motion.

The flywheel is bi-directional. Therefore, you can pedal in reverse if you want. However, coasting is not possible, and when pedaling in reverse, the pedaling motion has the same resistance as when you pedal forward. Thus, you can alternate pedaling sessions with reverse pedaling sessions to focus on different muscle groups.

The bike comes with a belt drive system. It uses a poly-v belt highly resistant to stretching and abrasion. Accordingly, it does not require periodic lubrication like a chain drive which is a plus. In addition, it also generates slightly less vibration than a chain drive, reflecting the ride’s overall smoothness.

The bike features a heavy-duty crankset. The crank arms are steel-made, similar to the ones on road bikes. They’re pretty long, so the bike promotes ample movement. The Q-Factor (spacing between the pedals) is also narrow (under 180mm), so the pedaling motion does not generate extra lateral stress on the user’s joints.

Last but not least, the included pedals are aluminum alloy. Unfortunately, they do not have SPD clips for spin shoes but have toe cages if you need to secure your feet or perform workouts with extra thrust. Furthermore, they have 9/16″ threads, so compatible options should be available in any bike shop if you ever need or want to replace them.

OT319 Fitness monitor

ONETWOFIT OT319 Indoor Cycling Bike
ONETWOFIT OT319 Indoor Cycling Bike

The fitness monitor included with the ONETWOFIT OT319 indoor cycling bike is pretty simple. Unfortunately, it does not have target settings, pre-set programs, or online connectivity. Instead, it features an LCD (without an LED backlight) that tracks time, speed, distance, and calories burned.

The monitor does not have an odometer or HR pulse tracking capability. Therefore, it is not telemetric, and you cannot sync it with a wireless HR chest strap. Thus, if you need to keep an eye on your pulse during your spin workouts, you will need to use a separate device.

The fitness monitor has only one button (MODE), and it’s straightforward. Accordingly, you can press the button repeatedly to select between time, distance, speed, and calories burned. This way, you can also set the Scan Mode, which automatically rotates all the metrics, showing each one for a few seconds.

In addition, the button also covers the reset function of the monitor. You can press it down and hold it for a few seconds to clear all its values to zero.

As mentioned earlier, the fitness monitor is battery-powered and requires a set of AA batteries that do not come with the bike. It starts when you begin pedaling and automatically turns off if it does not detect flywheel movement for more than four minutes.

OT319 Assembly and Maintenance

The most important parts of the bike, such as the flywheel, the crankset, the belt, and the brake, come pre-installed and attached to the frame. However, the rest of the parts do require user assembly. For example, you will have to connect the two base pieces to the main frame, the seat, the pedals, the handlebar, and the fitness monitor.

Consequently, this shouldn’t take more than 30-40 minutes of your time. In addition, an essential toolkit comes with the bike.

ONETWOFIT OT319 Indoor Cycling Bike

For maintenance, it is advisable to keep the bike clean. For example, the brake may require lubrication from time to time and eventual replacement. Other than that, it is also advisable to periodically inspect the bike to ensure that all the parts still function correctly and are tight in place.


  • Sturdy construction – supporting users up to 330 lbs;
  • Aesthetic design;
  • Both base bars have adjustable stabilizers;
  • Transport wheels on the front base;
  • 4-way adjustable seat;
  • High-comfort saddle with a contoured surface;
  • Multi-grip handlebar covered by rubber foam for optimal comfort;
  • Elbow rests included;
  • Standard friction resistance;
  • Extra-heavy, 44-lbs perimeter-weighted flywheel for aggressive inertia;
  • Heavy-duty crank, able to support any user up to the maximum listed weight in an upright pedaling position;
  • Durable (aluminum alloy) pedals with toe cages;
  • Maintenance-free belt drive;
  • Fitness monitor included – it tracks time, speed, distance, and calories burned;
  • Phone holder included;
  • Easy to assemble;
  • Little maintenance is required.


  • The fitness monitor does not have a pulse reading function;
  • No RPM reading function on the fitness monitor;
  • The fitness monitor does not have a backlight;
  • There is no bottle holder.

ONETWOFIT OT319 Indoor Cycling Bike Summary

The ONETWOFIT OT319 is a home-use indoor cycling bike. It has a 44-lb flywheel, a friction resistance system, a 4-way adjustable seat, and a simple fitness monitor with one button for tracking time, speed, distance, and calories.

In addition, it’s also a pretty sturdy bike, having a maximum user weight limit of 330 lbs. Moreover, it’s a bike ideal for spin workouts, high-intensity cardio training, strength development, stamina development, and weight loss.

I hope you found this article helpful and informative. Would you please speak up if you have anything you’d like to share on the topic or any opinions about my website? I look forward to your comments, questions, and the sharing of ideas.

Please remember that you should consult your physician to determine if you have any medical or physical conditions that could risk your health and safety or prevent you from using the equipment properly. In addition, your physician’s advice is essential if you are taking medication that affects your heart rate, blood pressure, or cholesterol level.

6 thoughts on “ONETWOFIT OT319 Indoor Cycling Bike | Ideal for Losing Weight”

  1. I like that this spinning bike has a heavy flywheel, as this is great for control and safety. It also makes the bike sturdy as nothing is worse than a wobbly bike when peddling fast. The saddle looks super comfortable too. 

    Thanks for this review. It is always great to compare the bikes before making your final decision.

    • Hi Michel, thanks for stopping by and sharing your thoughts with us. Would you please let me know if I may further assist you with exercise equipment? I’m always happy to help.

      Kind regards, Robert

  2. Wow, the Onetwofit OT319 seems to be the indoor bicycle that offers so much for even heavy people desiring to lose weight. The monitor for tracking time, speed, distance, and calories seems to be just what is needed to monitor one’s weight loss. A 44-lb flywheel is impressive but adds a friction resistance system with an adjustable seat, and you have something extraordinary.

    A maximum user weight limit of 330 lbs. is phenomenal, so users shouldn’t be worried about breaking it easily. 
    As it can adapt to many different types of workouts, it could be the total solution needed for a family of users. But, unfortunately, it seems to have like commercial properties.

    You have provided a comprehensive evaluation and have listed the pros and the cons. Thank you for such an insightful article.

    • Hi there; thanks for stopping by and sharing your thoughts with us. Would you please let me know if I may further assist you with exercise equipment? I’m always happy to help.

      Kind regards, Robert

  3. Hi,

    I just read your review of the OneTwoFit OT319 Indoor Cycling Bike, and I have to say, I was impressed by its features and capabilities. This bike is designed to provide a challenging and effective workout that is perfect for anyone looking to lose weight and improve their fitness.

    One thing that stood out to me was the bike’s adjustable resistance levels, which allow users to customize their workout and increase the intensity as they progress. This seems like a great way to challenge oneself and push past plateaus while ensuring safe and practical training.

    I also appreciated the adjustable seat and handlebars, which make it easy to find a comfortable and ergonomic position. This is important for preventing injury and ensuring users maintain proper form throughout their workout.

    Another feature that caught my attention was the built-in LCD monitor, which tracks time, speed, distance, calories burned, and heart rate. This seems like a great way to stay motivated and on track during a workout while providing valuable data for tracking progress and setting goals.

    Overall, I think the OneTwoFit OT319 Indoor Cycling Bike is an excellent choice for anyone looking for a challenging and effective workout perfect for losing weight and improving overall fitness. The adjustable resistance levels, comfortable design, and built-in monitor make it a versatile and practical exercise equipment. Thank you for providing such a detailed and informative review!

    • Hi Julia, thanks for stopping by and sharing your thoughts with us. Please let me know if I may further assist you with exercise equipment. I’m always happy to help.

      Kind regards, Robert


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