If you have ever walked past a full cycling class or ridden a SPIN®
You may wonder “what flywheel weight do I need?”…
Below, we will examine the importance of the flywheel, how they vary, and what to keep in mind to find the best option for yourself.
What Is a Flywheel of a Cycling Bike ?
The flywheel refers to the weighted wheel located at the front or the back of the
Flywheels can vary significantly in size, weight, and weight distribution. They range from some of the lightest weighing a mere 8lbs and the heaviest almost 50lbs. The weight distribution within the flywheel might also differ. Perimeter-weighted flywheels distribute the weight of the flywheel to the outermost part of the wheel, or perimeter. Others that have the weight centrally located within the wheel and are called Centered-Weighted flywheels.
The flywheel also plays a vital role in adding and removing resistance during the ride. If a

Why Does the Weight of the Flywheel Matter?
The flywheel’s weight is vital because it is a deciding factor to what type of ride the
Front Flywheel Versus Rear Flywheel of an Indoor Cycle
As technology continues to expand, the design of the traditional indoor cycling
Front Flywheel
A front flywheel is located at the front of an indoor cycling bike. Many manufacturers produce bikes that contain the front flywheel. One of the most known and respected indoor cycling brands on the market is Mad Dogg Athletics, the creator of Spinning® and the original Spinner® bikes. They have been the industry standard for years, and their sleek design has always included a heavier front flywheel. One of the main advantages of a front flywheel is that it offers more stability for riders, especially when climbing out of the saddle. The most considerable drawback of this flywheel placement is that it is located in what is known as the “sweat zone,” which increases the chance for sweat erosion.
Rear Flywheel
A rear flywheel is positioned at the back of the
Heavy Flywheels Versus Light Flywheels of an Indoor Cycle
There are two different philosophies in how momentum is created with a flywheel. One philosophy includes creating a heavier flywheel to drive momentum; the other involves increasing the rate at which the flywheel turns. Below we will discuss the advantages and disadvantages of having a heavy or light flywheel.
Heavy Flywheel
If you enjoy road biking, then a heavier flywheel might be more appealing to you as it offers the closest experience to riding a road
They are often associated with a smoother ride. Momentum is quickly built with a heavier flywheel. The
Due to the flywheel’s weight in conjunction with the rest of the
Advantages | Disadvantages |
---|---|
Smoother ride | Harder to move within your |
Mimics the feeling of riding a road | Frequent maintenance may be required |
Greater initial effort is needed to start pedaling |
Light Flywheel
A light flywheel has been associated with a rougher ride than that of a heavier wheel in the past. If a flywheel is too lightweight, then the ride can feel jerky, and the pedal stroke becomes uneven. An uneven pedal stroke can be damaging to joints. If momentum is unable to be maintained, then the rider is continually trying to adjust their speed. For a light flywheel to be effective and build momentum properly, it must spin at a much faster rate than that of the pedal stroke. The fastest spinning flywheel on the market is the Keiser M3i, which spins eleven times faster than the pedal stroke. The Keiser M3i is also at the higher end of the price range than various options that include a heavier flywheel. Another company that is also trying to follow Keiser’s footprints but is more affordable is Sunny Health &
Since a lighter flywheel’s weight can be significantly lighter than its heavier flywheel counterparts, it allows this
Advantages | Disadvantages |
---|---|
Easier to move within | More expensive for a quality option |
Less maintenance | Smoothness of ride may be affected |
Momentum quickly builds | Greater initial effort is needed to start pedaling |
More affordable | Harder on joints depending on |
What Is the Right Flywheel Weight for Me?
There is not a straight-forward answer to what the right flywheel weight will be for every person. This decision will vary depending on what you want from your
FAQ
Are heavy flywheels better?
It depends on the type and brand of bike you are looking at purchasing. If you are looking for a bike that includes a front flywheel, it is most likely to have a heavier flywheel. However, there are a few brands where this would not apply.
Does flywheel weight matter with magnetic resistance?
Yes, flywheel weight continues to matter with magnetic resistance. Depending on the bike model, other factors play a role in how the bike performs, as discussed previously, such as the rate that the flywheel spins for lightweight models.
What is the difference between a Perimeter-Weighted and Center-Weighted Flywheel?
A Perimeter-Weighted flywheel’s weight is along the outside or perimeter of the wheel. This weight distribution assists with momentum. A Center-Weighted Flywheel’s weight is centrally located on the flywheel and provides superior weight distribution, making it easier on joints.
Bottom Line
There are many different factors to consider when selecting the right flywheel for you. Finding an opportunity to try various