M3i Indoor Bike
MODEL 5506
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.
Keiser M3i
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.
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-shape frame to match riders of all sizes
- Rear-flywheel 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
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
THE RIDE BY KEISER
Discover the M3i's favorite workouts
Get to know The Ride — inspiring indoor cycling workouts designed to help you feel amazing! Stream inspiring classes from around the world. Anywhere, anytime.
This group of high-end studios promises a best-in-class ride.
See how the game-changing Keiser M3i has delivered that promise.
“Best indoor bike”
Average rating 5 1633
1633 Reviews
Verified Purchase
Specifications
- Height
- 49" / 1245 mm
- Width
- 26" / 661 mm
- Depth
- 51" / 1296 mm
- Weight
- 92 lbs / 42 kg
Features
- V-shaped frame to accommodate riders of all body shapes and sizes
- Magnetic resistance for a smooth and quiet workout
- Infinite incremental resistance changes
- Rear-wheel design for protection from sweat and corrosion
- Transport wheels for ease of transport
- Revolutionary re-designed Keiser Bike Pedal
- Self-tensioning, zero maintenance Poly-V® Belt Drive for low maintenance and reliability
- Intuitive, simple to read console displaying cadence, power, Kcals, heart rate, ride time, odometer, trip distance, and gear, all on one screen
- Keiser Integrated Technology: advanced connectivity for the gym and your home
- EN957-10 certification for power accuracy, safety and environmental friendliness
- Robust adjustment knobs that require less maintenance than cam-locks
- Four-way adjustable seat
- Four-way adjustable handlebars
- Media tray, stretch pads, water bottle holder
- Keiser education and certifications available
Frequently asked questions
What is the difference between the Keiser M3 and M3i?
What is the price of the M3i?
Is this the latest model?
Which heart rate monitors are compatible with Keiser M Series bikes?
How does Bluetooth® wireless technology work on the Keiser M3i?
What is the warranty for the M3i?
Why are the Keiser M3/M3i bikes designed with a light flywheel?
KEISER MOBILE SHOWROOM
We'll bring the power of Keiser to you
Demo up to 7 Machines in 60 minutes – at your facility.
We'll bring a Mobile Showroom to you to “Demo the Keiser Difference” – in the convenience of your own facility. In just one hour, you and your team can try out as many as seven Keiser machines, including resistance, functional cable, and cardio.
Components
Paint / upholstery
Keiser offers numerous options to customize your equipment. With upholstery color and frame painting options you can finally get the machine that suits your facilities needs or personal tastes. Lead time is required for most custom orders. Please contact us for more information.
Paint / upholstery
Keiser offers numerous options to customize your equipment. With upholstery color and frame painting options you can finally get the machine that suits your facilities needs or personal tastes. Lead time is required for most custom orders. Please contact us for more information.
Accessories - Standard
Stretch Pads
Stretch pads provide a convenient place for a pre and post-ride stretching and are standard on the M3i and M5i.
Stretch Pads
Stretch pads provide a convenient place for a pre and post-ride stretching and are standard on the M3i and M5i.
Media Tray
Media tray provides a convenient spot for reading material or personal electronics and is standard on the Keiser M3i Indoor Bike and the M5i Elliptical Strider.
Media Tray
Media tray provides a convenient spot for reading material or personal electronics and is standard on the Keiser M3i Indoor Bike and the M5i Elliptical Strider.
Keiser M Series App
Easily track and record your rides with real-time graphs for power and cadence range dials. More advanced users can add on the ability to test and track functional threshold power (FTP) directly within the app. The Keiser M Series Cycling app is available for Apple® or Android™ devices via the App Store® or Google Play™.
Keiser M Series App
Easily track and record your rides with real-time graphs for power and cadence range dials. More advanced users can add on the ability to test and track functional threshold power (FTP) directly within the app. The Keiser M Series Cycling app is available for Apple® or Android™ devices via the App Store® or Google Play™.
Keiser M Series Group App
With the Keiser M Series Group app, featuring functional threshold power (FTP) training, indoor cycling instructors can enhance their teaching capabilities to easily transform classes into fun and fiery competitions that inspire riders and keep them coming back for more.
Keiser M Series Group App
With the Keiser M Series Group app, featuring functional threshold power (FTP) training, indoor cycling instructors can enhance their teaching capabilities to easily transform classes into fun and fiery competitions that inspire riders and keep them coming back for more.
M Series Instructor App
With the M Series Instructor app, instructors can view all the Keiser M3i bikes, M5i Strider Ellipticals, and M3i Total Body Trainers in a group class in a single list, with options to sort live data in a simple scrolling view.
M Series Instructor App
With the M Series Instructor app, instructors can view all the Keiser M3i bikes, M5i Strider Ellipticals, and M3i Total Body Trainers in a group class in a single list, with options to sort live data in a simple scrolling view.
M Connect Display
This new display has been enhanced with the technology of our M Series Converter. Connect seamlessly to your favorite apps right out of the box.
M Connect Display
This new display has been enhanced with the technology of our M Series Converter. Connect seamlessly to your favorite apps right out of the box.
Floor Mat
Put the floor mat right under your Keiser M Series Cardio machine and protect your floor from sweat! Measures 65" x 32".
Floor Mat
Put the floor mat right under your Keiser M Series Cardio machine and protect your floor from sweat! Measures 65" x 32".
Accessories - Optional
Gel Seat Cover
Order a gel seat cover and add some comfort to your ride! Installs in seconds and fits our saddle or any other "narrow" saddle.
Gel Seat Cover
Order a gel seat cover and add some comfort to your ride! Installs in seconds and fits our saddle or any other "narrow" saddle.
Dumbbell Holder
Add an upper body workout to your ride. The optional Keiser M3/M3i Dumbbell Holder is designed to hold two hand weights, weighing up to 5 pounds apiece, and installs easily in minutes (dumbbells not included).
Dumbbell Holder
Add an upper body workout to your ride. The optional Keiser M3/M3i Dumbbell Holder is designed to hold two hand weights, weighing up to 5 pounds apiece, and installs easily in minutes (dumbbells not included).
Polar H9 Heart Rate Monitor
Reach your fitness goals by monitoring your heart rate with the Polar heart rate monitor! Transmits your heart rate data wirelessly to any M Series Cardio machine.
Polar H9 Heart Rate Monitor
Reach your fitness goals by monitoring your heart rate with the Polar heart rate monitor! Transmits your heart rate data wirelessly to any M Series Cardio machine.
M3i Tool Kit
The M3i Tool Kit enables you to get riding on day one. You'll receive everything you need to assemble and maintain your new bike, including the torque wrench and crowfoot wrenches.
M3i Tool Kit
The M3i Tool Kit enables you to get riding on day one. You'll receive everything you need to assemble and maintain your new bike, including the torque wrench and crowfoot wrenches.
Talk to a sales rep today
