




M SERIES CONVERTER
RIDE WITH YOUR FAVORITE APPS
The M3i connects to many popular cycling apps to enhance your workout experience. Add an M Series Converter to gain access to a wide variety of compatible cycling apps, including Peloton (converter optional), Zwift, The SufferFest, TrainerRoad, Rouvy, and more.


THE M3i FITS RIDERS
FROM 4'10" TO 7' UP TO 350 POUNDS
The v-shaped frame allows the seat and handlebars to be adjusted for adult riders of almost any size. Horizontal adjustments provide further ability to get a perfect fit for any rider
"MY SON IS 6'10’ AND A COLLEGE ATHLETE SO WE NEEDED A DURABLE BIKE THAT WOULD ADJUST TO FIT HIS HEIGHT. THIS BIKE WAS PERFECT. I LOVE THAT WE CAN EASILY ADJUST BOTH THE SEAT AND HANDLE BARS TO GIVE EVERYONE IN OUR FAMILY A PERFECT FIT. "
Nancy Kreiner | Okoboji, IA
THE M SERIES PEDAL
WORKOUT SHOES OR SPD CLEATS
Use your favorite standard workout shoes with the built-in toe clip straps on the M3i. Or, flip the pedal over to use your favorite cycling shoes with popular SPD cleats. To use another cleat style, simply replace the pedals with your choice of standard bike pedals (9/16" x 20 TPI) that accept your desired cleat.

THE M SERIES SADDLE
FIND YOUR COMFORT ZONE
The M3i comes with a saddle that provides a classic road bike experience for a wide variety of riders.
We designed our adjustable seat mount to fit all standard bike saddles. This gives you the option to add your choice of saddle for that truly perfect fit.
If all you want is a little more cushion, you can easily add a comfort seat cover to the saddle that comes with the M3i.

M3i Indoor Cycle - Keiser introduces intelligent cycling and the most technologically advanced indoor group cycle ever, the Keiser M3i featuring Bluetooth wireless display. The new Keiser Bluetooth wireless computer is certain to become popular with both riders and group exercise instructors.
The computer can transmit to a receiver for projection onto a screen and can also partner up with a wireless phone or tablet. At first glance the Keiser M3i catches the eye with a sexy new black color scheme that also features a red flywheel guard.
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
ALL THE DATA YOU NEED ON A SINGLE SCREEN
We designed the M3/M3i Indoor Bike computer to be simple, with everything a rider needs to know on a single screen. This includes RPM (Revolutions Per Minute), Power and Energy (Watts and Kilcalories), Heart Rate, Elapsed Time, Gear and Trip Distance. Additionally, the back-lit display turns on when the room light drops below a set level and – unlike other indoor bikes – remains on.
KEISER 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
SPECIFICATIONS
HEIGHT49" / 1245 mm
WIDTH
26" / 661 mm
LENGTH
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 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
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.
"VERY EASY TO ASSEMBLE"
Leila | Hollywood, FL
"I AM MOST CERTAINLY NOT HANDY, BUT IN NO TIME I WAS RIDING ON THE BIKE"
Steve | Raymond, ME
"LOVE LOVE LOVE! THE M3I WAS SO EASY TO PUT TOGETHER. THANK YOU."
Chris | Lincoln, NE
MAKE ASSEMBLY EVEN EASIER
The optional M Series Assembly and Maintenance Kit contains everything you need to assemble and maintain your new M3i indoor bike, including the torque wrench and crowfoot wrenches.

Add the M Series Assembly & Maintenance kit to your order and make assembly even easier. You'll receive everything you need to assemble and maintain your new bike, including the torque wrench and crowfoot wrenches.
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 and indoor bike not included.