Keiser M3i M Connect Indoor Spin Bike
NOTE: Keiser M3i + Keiser M Series Converter has been upgraded to the NEW! Keiser M3i M Connect Indoor Spin Bike
The Keiser M3i spin bike 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.
A Spin Bike 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 accommodate all riders
- Rear-wheel design for protection from sweat and corrosion
- Magnetic-resistance technology for greater repeatability and reduced wear
- Quiet, reliable and low-maintenance single-belt drive train
- Revolutionary re-designed Keiser Bike Pedal
- Bluetooth wireless signal for open API for tablets and smartphones
Keiser M3i M Connect Indoor Spin Bike
- 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 using Bluetooth connectivity to record and track progress using our M Series apps
- 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
Keiser M3i M Connect Indoor Spin Bike
THE M3i FITS RIDERS From 4’10” to 7’ Up To 350 pounds
- HEIGHT: 49" / 1245 mm
- WIDTH: 26" / 661 mm
- LENGTH: 51" / 1296 mm
- WEIGHT: 92 lbs / 42 kg
Included with every bike:
- Media Tray
- Stretch pads
- Keiser M Series App
Keiser M3i M Connect Indoor Spin Bike
The Keiser M3i Indoor Cycle is warranted to the original purchaser, to be free from defects in materials and workmanship for the following period(s), starting from the date of original delivery as evidenced by the appropriate shipping documents.
- All Inclusive - 3 Years (Excluding labor and wearable parts)
- Wearable Parts - 6 Months (Wearable parts include: "T" Handles, Pedal Cage, Pedal Strap, & Saddle Upholstery)
Keiser M3i M Connect Indoor Spin Bike
SIMPLE. FAST. Assembly made easy
Your M3i Indoor Bike is designed to be easy to assemble. And it ships with easy-to-follow instructions. Watch our online assembly guide video to see how easy it truly is.
Keiser M3i M Connect Indoor Spin Bike
Connectivity simplified.
Announcing M Connect, the latest improvement to our M3i Indoor Cycle and M5i Strider! The M Series Computer has been upgraded with the technology of our M Series Converter, meaning you can now connect to any of your favorite apps with no additional setup or external devices.

Keiser M3i M Connect Indoor Spin Bike
What is the M Connect?
M Connect is the newest display for the M3i and M5i and has replaced the M Series Converter. You can now connect to your favorite apps with no external devices required!
What apps are compatible with the M Connect?
- Keiser M Series App
- ImPowered
- Spivi Home
- Heart Zones Trainin
- mPaceline
- Zwift
- Peloton
- Sufferfest
- Rouvy
- TrainerRoad
- Kinomap
- BKool Fitness
You can also use any infoor cycling class app as most of them do not require connecting to your cycle in order to take part!
Where is the M Series Converter?
The M series Converter has been discontinued, if you're looking for enhanced connectivity you can contact Keiser's parts department to order an M connect display
Is my M Series Converter outdated?
Not at all! You can continue to use your M Series Converter, or you can purchase the M Connect display to replace it.
What heart rate monitors can I use with the M3i?
The Polar H9 and Polar H10 are compatible!
What is the difference between the M3 and M3i?
The M3i handlebars are more adjustable, accommodating riders from 4'10" to 7' tall.
In addition, the M3i ships with the M Connect display, giving you access to a wide variety of fitness apps. You can click here for a list of compatible apps