Keiser M31 Indoor Cycle Review

Are you looking for a quality indoor bicycle for your home workouts? Keiser M31 is the best one for you to buy!

Going to the gym was getting harder and harder so I decided to try out home workouts. I didn’t want to spend a lot on equipment so I opted to buy an indoor bicycle for my cardio workouts. Getting the best bike was a challenge because of all the available options today but after trying out a few bikes and checking the size, durability, and additional features.

I chose the Keiser M31 Indoor bicycle. This is one of the best bikes I have used. It is strong, easy to use, and stylish to have at my house. It is comfortable and I did not have to do much to maintain it. The transport wheels also make it easier to move around when I need to clean.

The Keiser M31 Indoor Bike review and Breakdown

[amazon box=”B00LAESVPG” template=”horizontal” ]

Keiser is one of the most popular brands when it comes to home fitness. One of their most popular machines is the Keiser M31 indoor bike which is a durable and stable machine for cardio workouts. The design of the M31 makes it stylish to put in your gym or home.

This is a simple to use a stationary bike that will give you the intense workout you desire. This indoor bike is Bluetooth enabled to allow you to connect with the Keiser series apt to download and transfer your workout data. This bike comes in one colour and has a weight limit of 300lbs.

It is a popular bike because of its durability and easy to use. With the transport wheels on this bike, you can move it around easily when storing. You can enjoy a smooth workout with these 24 levels of magnetic resistance that doesn’t make too much noise either.

What we liked:

  • The curved crank arms give you ample room for different types of footwear.
  • With the Keiser app, you can download your data from the computer to better track your fitness progress.
  • The seat is four-way adjustable to keep you comfortable when exercising.
  • It is a durable bike that requires little maintenance.

What we didn’t like:

  • More expensive compared to other indoor bikes
  • No workout programs included
  • The heart rate monitor is not included

View Price on Amazon

The Keiser M31 indoor bike specifications

Product Dimensions
45 x 26 x 49 inches
Resistance levels
Maximum user weight
85 pounds
2 AA batteries included

The Keiser M31 Indoor bike Features


The Keiser M31 indoor bike was designed to fit very many users. It comes with a v shape design to mimic road bike frames to give you the best cycling experience. There is enough room due to the cranked arms for any kind of footwear you have. This is a great looking bike with an adjustable seat and handlebars for comfort while cycling. This bike has a sturdy frame which is stable for intense workouts.

The durable frame on this bike makes it great for heavier and taller users. With a weight capacity of 300lbs, you are sure to get a thorough workout. Weighing just 85lbs, this indoor bike is lighter than its competitors. It is a quality bike with smooth operation due to its 2 levels of magnetic resistance. You can place it anywhere you want in your house.


The display on the Keiser M31 indoor bike is simple and has everything you need to know on one screen. This includes time, distance, heart rate, power, and gear. The display is very easy to read with a backlit console that turns on when the level of light is low. If you want a bike that you can work out while keeping track of your progress this is a great choice.


The Keiser M31 comes with a standard adjustable seat. This seat is narrow and comfortable so that you can completely focus on your cycling. You can adjust this seat horizontally and vertically to fit your height better. Quality bikes have adjustable seats for increased comfort and versatility. This offers you more control and reduces your chances of getting an injury while working out.


The flywheel of any spin bike is very important to consider. With the design of the Keiser M31 bike, you don’t need a heavy flywheel due to the magnetic resistance system. The belt drive train on this bike offers you a quieter resistance and does not require as much maintenance compared to chains Magnetic resistance is preferred for a smoother experience with your bike. With reduced friction between parts, you don’t have to worry about the parts wearing down too soon.

Handlebars & Pedals

The good thing about this bike is the adjustable handlebars. You are free to adjust to fit different positions. The handlebars are multi-grip to allow you to place your hands anywhere while working out. You can comfortably adjust your grip for different riding positions. The media tray is convenient for placing your gadgets while training.

The pedals on this bike are lightweight and very comfortable when cycling. They minimize pressure on your feet and are fitted with cages to offer you better stability when riding. The curved design also adds to the comfort while allowing you to wear a variety of shoes for your workouts. This bike has good looking pedals that are designed to last.


This bike does not come fully assembled like other indoor bikes. The Keiser M31 indoor bike comes with a detailed manual for you to follow for assembling the bike. You will need to do quite a lot of assembling if you chose to buy this bike compared to other bikes.

It will be difficult for beginners because you have to use your tools to attach the flywheel, handlebars, saddle, console, and the pedals. The assembly process will take you over an hour but it is manageable if you follow all the instructions given.

Additional Features

This bike comes with a water bottle holder so that you don’t have to interrupt your workout to drink water. Although this indoor bike does not come with any programmed workouts, you can easily connect it to other apps.

The Bluetooth app connectivity feature on this bike sets it apart. It can function with selective apps like BKool, GOlnd, and SPIVI. This makes it easier to collect and store your fitness data over time. It also gives you key data like your heart rate with a compatible heart rate monitor.

Who is it best suited for?

Due to the high quality of the Keiser M31 indoor bikes, they can be used at home and also commercially in gyms. It is great for home workouts because it is durable with a close to quiet operation while exercising.

This bike is best suited for users looking for low maintenance and durable stationary bike for intense workouts. With a weight capacity of 300lbs, it can better accommodate heavier users.  It is suitable for a variety of users between the heights of 4″-7″. If you are looking for a quality bike that will meet your cardio needs this is the one for you.

Are there any alternatives to the Keiser M31 indoor bike?

Apart from the Keiser M31 bike, you can also use the Exerpeutic Folding upright bike and the Schwinn IC2 bikes for home workouts. They are quality stationery bikes for intense training. These bikes also come with magnetic resistance if you want a bike with quiet operation.

Features of Alternatives to the Keiser M31 indoor bicycle

Exerpeutic Magnetic indoor bike
Schwinn IC2 Indoor Bike
Product dimensions
31.00 x 19.00 x 46.00 inches
45.00x 23.00 x 49.00 inches
93 lbs

Verdict: Should you buy the Keiser Indoor Bicycle?

The Keiser M31 is well designed and durable to offer you the best cycling experience. It is a quality indoor bike to take your fitness to the next level. The Bluetooth connectivity on this bike lets you download your workout data to better keep track of your progress.

The display on this bike is easy to use and with a tray on the handlebars, you can put your devices while working out. With transport wheels, you won’t have trouble moving this bike to clean or for storage. If you want a stylish indoor bike for home workouts, this is the one for you.

Frequently Asked Questions

  1. Would this bike be ideal for a tall person?

Yes, it is. The Keiser M31 indoor bike is good for tall and short people. With a vertically adjustable seat, it can fit people between 4′ to 7′ in height.

  1. Which apps are compatible with the Keiser M31 indoor bike?

The apps that are compatible with the Bluetooth connectivity on the Keiser M31 bike include BKool, GOlnd, Spivi, and imPoweredBeTrained.