Keiser M3 Spin Bike Review

Keiser M3 indoor spinning bike review

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Easy to assemble, computer, customer support, build




If you’re looking for a professional indoor bike to add to your home gym or to make a spin class at your gym, the Keiser M3 might be just right for you.

Our Rating




Indoor cycling can have many positive effects on your overall health. The American College of Sports Medicine says that this sport can increase your cardiovascular health, lower stress, help your muscles, and burn tons of calories.

Perhaps that’s why many gyms have added a spin class.

If you’re a gym owner looking to incorporate spin classes or a consumer seeking to bring the advantages of indoor biking home, the Keiser M3 Indoor Stationary Trainer might be just what you need.

First, be sure that this bike will fit in your designated space.

Gym owners especially need to consider area when determining how many you can fit in you a room.

Here are this bike’s stats:

  • 45-inch height5-inch height
  • 26-inch width
  • 49-inch length
  • 85-pound weight

Overview of Features

At such a high price point, you should expect only the best features of this machine. Keiser is known for its high-quality products, and this bike is no exception.

Here are a few things this device includes:

  • Infinitely Adjustable Resistance
  • Smooth Operation
  • Adjustable Seat
  • Powerful Computer
  • More

Each element goes a long way to making this one of the best performing indoor trainers on the market today. In fact, Keiser has sold more than 300,000 M-series bikes and counting.

Infinitely Adjustable Resistance

Forget about only having a few tension levels. The Keiser M3 allows you to fine-tune your resistance for a perfectly customized workout. You (or your students) can ride the way that makes sense for your body with just the turn of a knob.

This is no ordinary knob, however. The Keiser M3 comes with a tension adjuster that requires less maintenance than your typical cam-lock knob. This bike is built to last a long time without tons of repairs.

Smooth Operation

This bike uses magnetic resistance to create a belt drive system that is smooth. It won’t jerk, pull, or make you feel off-balance. Instead, it offers a consistent ride that keeps you going.

Furthermore, the belt-drive system is low maintenance, which can save you money.

Keiser M3 Wheel Smooth Drive

The stainless-steel flywheel and hardware also help ensure a smooth ride every time. When other bikes rust, they can be difficult to ride. The rust-proof coating on this bike keeps that from happening and ensure a comfortable ride for years to come.

Adjustable Seat

The Keiser M3 features a V-shaped frame that adjusts to fit a variety of riders. Move the bicycle handlebar forward or backward to accommodate different heights. Plus, the four-way adjustable seat moves to customize the positioning further.

This feature is vital to getting the most out of a bike. If someone doesn’t position the bike correctly, they could experience pain or even get injured. Correct form is essential to any gym class or a home workout.

Powerful Computer

The rise of wearable fitness trackers proves that fitness junkies are often also data fiends. People want to know the nitty-gritty details of their workout and learn about their bodies. The Keiser M3 helps with a powerful computer.

The optional screen displays:

  • RPM
  • Calories Burned
  • Power Output
  • Heart Rate
  • Time
  • Distance

The computer learns the heart rate through a wireless Polar monitor.


In addition to the features above, the Keiser M3 also offers:

  • Quiet operation
  • Transport wheels for easy moving
  • Fewer maintenance requirements
  • Re-designed pedals
  • Six-month warranty

Each of these features are important for a variety of reasons. However, the advertised features are only any good if they work in real life.

Below, you can find what we like and don’t like about this bike.

What We Like

Over three-quarters of Amazon reviews for this bike give it a five-star rating. That’s great news, considering its price point.

So, what do people love about this model?

First, it’s easy to assemble. The instructions are clear and it takes does not take too long to put together.

Once you get yours assembled, you may notice the sturdy construction. It’s easy to see that this bike will last a long time if you properly take care of it. In fact, users reported having up to 30,000 miles on it with no signs of wearing down. That’s a great investment. Assembly is simple and quick, with most individuals completing it in under half an hour using the provided tool.

Keiser M3 Indoor Bike Review

Many reviewers love the computer on this machine. It runs for a long time and gives you all the data you could need. You can see how much you’re putting into your workout, what gear you are in, and how your workout is paying off in calories burned. It’s an excellent motivator.

Keiser also offers superior service. If you have any trouble with your bike, they will help you in any way possible. It’s great to know that the company stands by its product.

What We Don’t Like

The price is quite steep, especially if you’re not sure cycling is for you. However, if it fits in your budget, this is an incredible bike.

The other downside to this bike is that the seat isn’t comfortable. This is common in bikes of this sort. Many people purchase seat covers to help with this problem.

Finally, some users report problems with the parts that they got. If you receive defective parts or if some parts are missing, be sure to contact Keiser.

Shipping and Assembly

Amazon normally offers free shipping. It is properly protected in a double-layer shipping box, according to customers. Assembly is simple and quick, with most individuals completing it in under half an hour using the tools provided.


If you’re looking for a professional indoor bike to add to your home gym or to make a spin class at your gym, the Keiser M3 might be just right for you.

With a smart design, several great features, and a powerful computer, it surpasses others in quality.

It comes in at a higher price than some bikes. However, you get what you pay for with a comfortable ride and superior service.

If you think this is the bike you want, check it out today. You may find that it’s better than you ever hoped.

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Last update on 2024-06-14 / Affiliate links / Images from Amazon Product Advertising API

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