After rgetting hooked on indoor cycling at the gym, I found there were days when I couldn’t fit the gym into my schedule. So I decided to invest in an indoor cycling bike for my home. This set off a month-long project where I compared all of the major brands of spinning bikes for sale.
While I ended up buying a bike to fit my budget (see my review of the Spinner Sport Spin Bike), I concluded at the end of my research that the Keiser M3 indoor cycling bike is a very popular spinning bike for cyclists who are ready for something more than an entry-level bike. It is definitely the indoor cycling bike that I aspire to own someday!
The following is a summary of my research on the Keiser M3. I began by looking at each of the major components of all indoor cycling bikes. Those are:
· The Flywheel
· The Resistance Controller
· The Seat
· The Handlebars
· The Pedals
· The Computer
The Flywheel …
The flywheel on the Keiser M3 is different than flywheels on most other indoor exercise bikes. While most popular spin bikes have the flywheel in the front of the bike, the wheel on the M3 is placed in the BACK of the bike. I couldn’t figure out the reason for this, so I called the Keiser company and spoke with one of their representatives. He explained that the “aft” location of the flywheel was designed to keep the wheel out of the sweat zone, which can cause a lot of wear on the wheel.
Apparently, having the flywheel in the rear of the bike also creates a smaller footprint, meaning that it takes up less space on the gym floor or in your apartment than other spin bikes.
The Resistance Controller …
Unlike “free wheeling” spin bikes, the Keiser M3 spin bike gets its resistance from an electrical “eddy current” created by magnetic resistance. It’s actually a simple but elegant system. A simple magnet is used to create a magnetic field that slows down the spinning metal flywheel. The more magnetic resistance, the harder it is to pedal the bike.
On the Keiser M3 spinning bike, the rider can change the resistance on the flywheel via a set of levers, or “gears”. The bike has 24 different gear settings, providing an almost unlimited range of resistance.
One of the main benefits of the magnetic resistance system is that the Keiser M3 requires almost no maintenance. It never needs to be lubricated or adjusted. (This is one of those little things that really has me sold on the Keiser M3 bike.)
The Seat …
This bike comes with a 4-way adjustable seat, allowing the user to move it forward and aft, as well as up and down. With most indoor cycling bikes, the seats are adjusted using “notches” or preset holes, but the seat stalk on the Keiser M3 slides up and down and forward and backward, providing an infinite number of settings for the seat adjustments.
This is a great feature if more than one user will be riding the bike, but you might want to mark your favorite seat positions with different colors of tape so you can quickly and precisely change seat adjustments.
The Handlebars …
The angled handlebars on the Keiser M3 allow the rider to grip in a variety of different positions. The handlebars can be adjusted up or down to accommodate the height of the cyclist, but unlike other spinning bikes, the Keiser M3 handlebars do not adjust forward and back. However, users have not found that to be a problem since the height adjustment of the handlebars coordinates very well with the seat height adjustments, making it unnecessary to move the handlebars forward or backward.
The Pedals …
The Keiser M3 comes with detachable Shimano pedals. Because this bike is designed for group spinning classes in gyms where not everybody has spinning shoes, the pedals on the M3 have toe straps. More advanced cyclists who own their own cycling shoes may want to remove the pedals and replace them with their favorite toe-clip cycling pedals.
The Computer …
One of the features that sets the Keiser M3 apart from entry-level spinning bikes is its on-board computer. The Keiser computer provides the following information:
· RPM (Revolutions Per Minute)\
· Power Output Displayed in Watts (currently generating)
· Heart Rate (Polar compatible)
· Pedaling Time
· Gear (Resistance) (1 to 24 gears)
· Odometer / Trip Distance
The Specifications …
* Height: 45” / 1143 mm
* Width: 26” / 660.4 mm
* Length: 49” / 1244.6 mm
* Weight: 85 lbs. / 38.56 kg
The Warranty …
The Keiser M3 comes with an extremely generous 3-year warranty. That is almost unheard of in the industry, but the Keiser representative I spoke with explained that the low maintenance features of the bike give it unusual durability.
What Users Are Saying …
The Keiser M3 is an extremely popular spinning bike. It has an enthusiastic 5-star rating at Amazon. Some recent comments include:
· ” First thing you will notice is the quality. Everything is top shelf.”
· “It is so quiet you could bike in the same room as someone sleeping!”
· “The biggest bonus of this bike is that it require no maintenance………..just wipe it down after use.”
· ” Extremely well built and very very quiet. It gives me a great workout.”
· ” If you appreciate machinery, the M3 is a true work of industrial art.”
· ” Smoothest ride EVER! And SO comfortable! Everything from the saddle to the positioning, just perfect!!!”
I could not find one negative comment about the Keiser M3 indoor cycling bike. Not even a complaint about the seat, and somebody always complains about the seat on a spinning bike. Whether they are riding the Keiser spin bike at the gym, or have purchased one for home use, users of this cycling bike give it universally rave reviews.
Where To Buy The Bike …
The Keiser M3 cycling bike retails for $1499. The company is a small U.S. company that operates with a very low profit margin, so there aren’t any discounts available on this bike. Most buyers agree that Amazon is the best place to purchase the Keiser M3 and warn about buying from unknown third party retailers.
To Read More Reviews …
If you would like to read full reviews from over 20 owners of the Keiser M3 spinning bike, click here.
After researching the entire category of indoor cycling bikes for home use, we would rank our findings as follows:
POPULAR: Spinner® SPORT Spin Bike