M3i FTMS Bike
THE BIKE THAT KEEPS RAISING THE BAR
The M3i is the culmination of over a decade of refinement of the M3 and hundreds of changes, from mastering
the flow of sweat around the bike and better corrosion resistance, to a power meter so accurate that it was the
first Indoor Cycling Bike to pass the EN957-10 European Standard for accuracy and safety. But we didn’t stop
there. It wasn’t good enough to have just one sample bike pass the test, we implemented a quality control and
testing program to ensure that every bike we produce will pass the test. The M3i continues to raise the bar with
the introduction of Keiser Integrated Technology and its ability to transmit to multiple Bluetooth® devices at once;
transmitting your workout data to your cell phone or tablet at the same time it is sending the information to the
class projection system and any other Bluetooth® device you want. With the heritage of the M3 and over 300,000
M3 and M3i bikes sold worldwide, it is the most proven and reliable bike on the market. But don’t take our word for it.
Ask our customers, please.
Specifications
- HEIGHT: 49" / 1245 mm
- WIDTH: 26" / 661 mm
- DEPTH: 51" / 1296 mm
- WEIGHT: 92 lbs / 42 kg
Features
- Four-way Adjustable Seat
- Four-way Adjustable Handlebars
- Water Bottle Holder
- Media Tray
- Stretch Pads

Keiser M3
Virtual
Experience
See how we built the bike through this exciting, interactive experience that guides you through all of the exacting specifications, wows you with exploded views of the bike’s innovative features and enlightens you with the science behind Keiser’s many industry firsts, proving why the M3i truly stands above the rest.

Keiser
Interactive
Cycling
Enhance your rides & instruction with Functional Threshold Power (FTP) training and more from Keiser’s indoor cycling apps and group class system.

M Series

M Series Group

M Series
Instructor
RIDER. GYM OWNER. TECHNICIAN.
Designed around you
The Keiser M3i is the industry’s only indoor group cycling bike built entirely around YOU – that’s YOU the rider, YOU the gym owner, and YOU the service technician. Game-changing features on the M3i include:
- V-shaped frame to match riders of all sizes
- Rear-fly wheel design for better protection from sweat and corrosion
- Magnetic-resistance for a smooth and quiet workout
- A self-tensioning, zero maintenance Poly-V Drive Belt
- Revolutionary re-designed Keiser Bike Pedal
- Bluetooth® wireless signal for open API for tablets and smartphones
KEISER INDOOR BIKE DISPLAYS TECHNICIAN. Two options for connected riding
Both backlit display options on the M3i include cadence, power, Kcals, heart rate, ride time, and more. Both also connect to popular group exercise packages as well as Keiser’s M Series apps.
M Connect Display
Great for home or studio, Keiser’s M Connect Display can connect the rider to a wide array of popular, third-party apps and content and popular group exercise packages and Keiser apps.
Studio Display
The Studio Display is perfect for the studio owner who wants to offer connected group exercise with a narrower selection of health and fitness apps and training content.

13 THINGS TO LOOK FOR WHEN BUYING AN INDOOR GROUP CYCLING BIKE.
The Biker's Dozen
Who exactly should an indoor group cycling bike be built for? It shouldn’t be built just for riders. Or gym owners. Or maintenance technicians. Rather, a truly great bike should be built for all three. But how can you tell? Download The Biker’s Dozen to find out.
PUSHING PAST INDUSTRY LIMITS
Keiser Cardio M Series Bike Pedal
With our game-changing bike pedal, Keiser has again revolutionized indoor cycling, down to the last detail. New pedal features include:
- Stronger bearings tested for static and dynamic loads
- Cage integrated into pedal design, not just added on
- Ramped barbs for secure and simple foot placement
- Curvature eliminating pressure points on the rider’s foot
Frequently asked questions
Can I train heart rate on Keiser M Series indoor bikes?
Yes.
Which heart rate monitors are compatible with Keiser M Series indoor bikes?
We recommend Polar brand monitors, specifically the Polar® H1 models.
How does Bluetooth® wireless technology work on the Keiser M3i and M3iX indoor bikes?
To help you meet your fitness goals, there are several available smart phone apps compatible with the M3i and M3iX, including Keiser M Series (iOS and Android) Keiser M Series Pro (iOS and Android), Goind (iOS), Ride Buddy Buckets (iOS), Impowered.betested (Android) and Impowered.betrained (Android). The free Keiser M Series app allows you to track all of your cycling data session by session and export your data to TCX files for import into most popular training software. The Keiser M Series Pro app includes the ability to perform FTP tests.
Are there differing commercial and residential versions of Keiser M Series indoor bikes?
No, whether you are a home user or a commercial gym, you will receive the same high-quality indoor bike.
Do you offer payment plans?
We do not offering financing at this time.
What is the warranty for Keiser M Series indoor bikes?
No, whether you are a home user or a commercial gym, you will receive the same high-quality indoor bike.
Will my Keiser M Series indoor bike require assembly?
Yes, in order to reduce costs for customers, we ship our bikes partially assembled. The accompanying user manual details the entire process.Click here to view the manual, watch our home assembly video, lookup assembly service providers or contact our service department at 559-256-8000 with any questions. Lastly, if you’d prefer not to self-assemble your bike, you can contact our in-home specialist at 559-256-8020 or 1-800-888-7009 (toll free) for a quote to have the bike assembled by a professional or to have one shipped to you fully assembled.
What are "kcals"?
Kcals, or kilocalories, are the same as food calories.
Why are the Keiser M3/M3i bikes designed with a light flywheel?
Groom + Style explains the reasons behind that engineering decision in their article: Spin Bike Flywheel Weight – Is a Heavier Flywheel Better On an Exercise Bike?
Does the M3i include a media holder?
yes. The M3i includes a standard media tray and stretch pads for pre and post-ride stretching.