Keiser M3 Indoor Cycle Stationary Trainer Exercise Bike Review

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The Keiser M3 spin bike is one of the best choices out there for both seasoned indoor cyclers, as well as beginners. The Keiser M3 is made to last, and can provide years of use and cycling without requiring maintenance. This high-performance spin bike comes with 24 magnetic-resistance levels ensuring a smooth and comfortable ride on the Keiser M3 at all times.

Our Rating: 9.2/10

Keiser M3 Indoor Cycle Stationary Trainer Exercise Bike Review
4.6 rating based on 12,345 ratings
Overall rating: 4.6 out of 5 based on 3 reviews.
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Overview & Ratings

Stationary bikes seem to be a smart choice for indoor exercise these days, especially with the popularity of cycling/spin classes. For those seeking a stationary exercise bike that emulates the experience of an indoor cycling class, consider the Keiser M3, which is focused on unbeatable performance.

The Keiser M3 exercise bike is ideal for cardio training and conditioning. Not only is it a great purchase for gym owners looking to accommodate their clients and indoor cycling classes, it’s also for anyone who is looking to train on a stationary exercise bike in the comfort of their own home. The Keiser M3 is incredibly durable, and promises to be essentially free of maintenance. The Keiser M3 cycle is steady, smooth, and silent when compared to other indoor stationary bikes.

The Keiser M3 exercise bike is a premium, gym-quality option, for those looking to invest in a stationary trainer bike or to purchase commercially. Based on our extensive analysis, we rated this product a 9.2/10.

Although we will go in more depth about the Keiser M3, here is a video of the product that will give you an idea of the features which it offers: Keiser M3 Indoor Cycle Stationary Trainer Exercise Bike Video.

For further information, a video looking at the Keiser M3 vs M3i models in comparison can be found here.

Features and Specs



  • Assembled Size: 45” x 26” x 49” (LxWxH)
  • Weight: 85lbs
  • Weight Capacity: N/A


The Keiser M3 has an array of great features which make it unparalleled to other stationary exercise bikes. This bike was created not only to meet the needs of gym owners and instructors, but to get any user excited to cycle. In this Keiser M3 review we will tell you why this machine makes for a great and reliable choice.

  • Lightweight & Compact

    The Keiser M3 spin bike won’t require much space whether it’s being used at home, or if as a gym owner you need multiple bikes for a cycle class. Not only is the Keiser M3 compact, with a height of 45” tall, it’s also light, weighing in at only 85lbs. If that’s not enough, transport wheels attached to the front of the Keiser M3 indoor bike make it super easy to move around with just a simple tilt.

  • 24 Built-In Resistance Levels

    The 24 magnetic resistance levels on the Keiser M3 are definitely a selling point. The wide range of levels vary from light to much stronger, allowing a customizable experience for cyclers. No matter what level suits you, the magnetic eddy current system in the Keiser M3 will always give you a smooth ride.

  • Keiser M3 LCD Display Screen

    The Keiser M3 computer is activated once you start pedaling. Once the LCD display is running, you will be able to see your RPM (Revolutions Per Minute) also known as how fast you’re pedaling per minute, resistance, heart rate, elapsed time, distance, gear, and watts/kcal. Although the Keiser M3 display may seem simple, it’s efficient nevertheless.

  • Quiet & Smooth Ride

    As previously mentioned in this Keiser M3 review, the smooth ride on this bike is made possible because of the magnetic resistance with which it’s designed. The Keiser M3 is also a very quiet machine, making little to no noise when riding.

  • Minimal Maintenance, Maximum Durability

    Another spec about the design of the Keiser M3 which users seem to love is how durable it is. These bikes are created with commercial use in mind, so they must be able to withstand constant use (think, multiple people daily in a gym environment). The Keiser M3’s resistance system is “non-wearing” because of the materials that it’s made from, and will surely last for years to come. The single belt drive on the Keiser M3 won’t require the same care as bike models built on a chain drive, since chain-style bikes need frequent lubrication and have a higher tendency to break. Due to this construction the Keiser M3 bike is essentially maintenance-free.

  • Innovative & Re-Designed Pedals

    The Keiser M3 pedals have been redesigned for this model, now including Shimano Combo pedals. On the Keiser M3, one side of the pedal is SPD compatible and built for cycling shoes, whereas the other features an adjustable strap and toe cage to accommodate normal athletic shoes.

  • The Keiser M3 is Fully Adjustable and Comfortable

    The Keiser M3 indoor cycle guarantees comfort. The four-way adjustable seat includes a saddle that can adjust both horizontally and vertically in order to fit most individuals. The seat on the Keiser M3 is cushioned nicely, and if you wish, it can also be switched out with any standard bike seat. The handlebars on the Keiser M3 spin bike are two-way adjustable, with ergonomically padded grips.

  • Wireless Heart Rate Monitor

    The Keiser M3 computer console will show heart rate data, which is actually more accurate than the readings provided by lower-budget indoor cycle bikes. However, the handlebars on the Keiser M3 don’t have pulse sensors that read your heart rate. Therefore, you will need to purchase a Keiser M3 compatible heart rate monitor/chest strap.

  • Other Keiser M3 Accessories

    Accessories that come with the Keiser M3 include a water bottle holder, which fits both big and small bottles, as well as a set of AA batteries to use for the LCD display.

  • Warranty

    The Keiser M3 indoor bike comes with an “All Inclusive” warranty lasting 3 years (not including labor and wearable parts), and the frame of the bike is under warranty for 10 years. The Keiser M3 parts have their own warranty lasting 6 months which includes the “T” Handles, Saddle Upholstery, Pedal Strap, and Pedal Cage. Loss due to improper use/neglect, accident, poor maintenance, improper customer assembly, or a failure to properly follow instructions in the provided manual are NOT covered by the Keiser M3 warranty. This warranty is also only applicable to the US market.

  • Shipping and Assembly

    In most cases the Keiser M3 ships for free within the U.S, however, when shipping to Canada there will likely be a fee.
    Putting together the Keiser M3 is quite simple for most customers. The Keiser M3 bike comes half assembled for major parts, and a manual is provided to assist you with the remainder. The assembly time of this bike seems to be anywhere between 40 minutes to 2 hours, on average.

Our Likes

The Keiser M3 indoor cycle stationary trainer exercise bike fulfills the standard for most professional spin classes, which proves the superior quality of this product. This bike is the perfect addition to your gym or your home, and will motivate any of its users to keep up with their cardio conditioning and cycling.

Our Dislikes

The Keiser M3 indoor cycle stationary trainer exercise bike holds mainly positive reviews, but there are aspects of this bike that some customers had concerns with, much like any product.

  • Since it’s is a gym-quality bike, the Keiser M3 price is above-average compared to many home exercise bikes. However, when you look at the quality and durability of the bike, it’s a great price. If you’re looking to buy a Keiser M3 for your home, consider it an investment and you won’t be disappointed.

  • There are some extras which are not included with the Keiser M3 parts. Although the bike comes with batteries for the LCD display, some other items you’ll need for assembly aren’t included. For instance, to set up the Keiser M3 computer you will need a screwdriver.

  • Some customers may have trouble with the Keiser M3 calibration, as it can be a bit complicated at first. However, the Keiser M3 calibration tool is supplied with the bike so you can easily calibrate the magnets to the flywheels. The manual which is provided gives thorough step-by -step directions for every part of the assembly, so there is no need to be intimidated.

Our Verdict

With all things considered, the Keiser M3 is a premium choice for commercial or at-home use. Although it’s on the expensive side, when looking at the high-quality bikes from Keiser, this one is the most affordable. Comparing the Keiser M3 vs M3i for instance, you’ll find the M3’s price is more reasonable.

This bike is a favorite for spin classes and group training for many reasons. Since these bikes are often used in spin classes where a fitness instructor is present, there are no pre-set Keiser M3 training programs. However, the 24 resistance levels make it easy to match the cycle to any unique rider. This bike also gives an exceptionally smooth and quiet ride compared to others, and it will make you feel like you’re actually riding on the road. Also check out Best Exercise Bike Reviews – Stationary Upright Exercise Bike 2018.

Although the Keiser M3 accessories may not seem as plentiful as some other bikes, this model will prove that you don’t need a bunch of fancy “extras” for a quality cycle. The durability and no-fuss design of the Keiser M3 is enough to satisfy any customer. It promises to serve you maintenance-free for many years, whether you’ve purchased commercially or for your home.

The Keiser M3 is a great choice, especially for those focused on spinning. It will help with cardio training, lower body strength, as well as weight loss. With all features considered, we give the Keiser M3 indoor bike a final rating of 9.2/10. This gym-quality bike is the perfect investment, even if it’s just for home use.

Price & Shop

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*The Keiser M3 spin bike is for sale on for $ and provides free shipping within the U.S.A. Keeping this in mind, Keiser often has sales for many of their products, so be sure to check for the latest deals.

Question & Answers

  • Q. Can I monitor and train heart rate on the Keiser M3?

    A. Yes.

  • Q. Which are considered Keiser compatible heart rate monitors?

    A. Polar brand monitors are recommended by Keiser, especially the Polar H1 and T31 Wearlink models.

  • Q. Are there different versions of the Keiser M3 that sold for commercial VS. residential use?

    A. You will get the same premium gym-quality bike whether you are a home user or commercial gym who has purchased.

  • Q. Does Keiser offer payment plans when purchasing a bike?

    A. No, currently the company does not offer any sort of payment plan.

User Reviews Write a Review

Excellent purchase

Great bike service. My bike was shipped missing 2 bolts, but the company quickly sent them to me via Fed Ex and had a service technician on contact right away to ensure that everything worked. I love the ease of this spin cycle as well.
- Peggy A

Quiet and smooth

Awesome bike, so quiet and smooth. I was able to put it together with simply an adjustable wrench and fold up Allen wrench accessory, and it only took me about an hour. Anyone with tool skills would be even faster to assemble it than I was! For anyone on the “shorter” side, I am 5 ft tall and able to easily reach the handlebars without locking out, so it’s comfortable too.
- Joan K

Comfortable, sturdy, and a pleasure to ride

Extremely happy with this bike! Quiet, comfortable, sturdy, and a pleasure to ride. It arrived in perfect condition, packed exceptionally well, too. The few parts which you have to assemble yourself go together with ease, and the instructions are good. Spend the few extra dollars it takes to own this bike, it’s well worth it.
- Sherry

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Last updated on September 29th, 2020

Kara Scerri

Kara has always loved to write. As a creative person, it’s her favorite way to express herself. Kara graduated from York University in Psychology and has since completed a certificate from Sheridan College in Digital Marketing Management. In her spare time, Kara actively practices yoga. She promotes living a healthy and balanced life, and always makes sure to stay on top of current health and lifestyle trends.