More than 20 years ago, Keiser set out to create an exercise bike that would exceed the demands of indoor group cycling: An indoor bike that fits riders of all body shapes and sizes; a bike that achieves a quiet — but true — road bike experience inside your gym or home; and the ONLY stationary bike built in the United States to ensure the tightest quality control. And we accomplished it all with the Simplest of Engineering Designs.
Features:
- V-shaped frame to accommodate riders of all body shapes and sizes from 5’ to 6’2” tall.
- Magnetic resistance for a smooth and quiet workout.
- Infinite incremental resistance changes.
- Rear-wheel design for protection from sweat and corrosion.The
- M Series Pedalis are designed to meet the demands of group indoor cycling.
- Self-tensioning Poly-V® belt drive for low maintenance and reliability.
- Robust adjustment knobs that require less maintenance than cam-locks.
- Four-way adjustable seat.
- Two-way adjustable handlebars.
- Media tray, stretch pads, water bottle holder.
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Transport wheels for ease of transport.
New Studio Display. Makes M3i a Better Ride.
- Ride by Color™: Full-color feedback to track FTP and HR zones. Customized for five, six, or seven power zones.
- Personalized metrics: Enter your info to get personalized metrics and new ways to track intensity.
- 72 Gears: More gears make it easy to find the perfect resistance level.
- No cords, no batteries: Keiser’s pedal-powered generator and super capacitor provide a lifetime of power.
- The latest connectivity: Connects to apps and devices via ANT+™ and Bluetooth® CSCS, CPS, and FTMS.
Track Intensity Four Ways
Switch between modes during your ride for a three-dimensional ride experience.
- 5, 6, or 7 FTP Zones: Enter your FTP for Ride by Color™ FTP zone display. Choose five-, six-, or seven-zone option.
- Heart Rate: Enter your HRMax and pair a heart-rate monitor with the display for Ride by Color™ HR display.
- METS: Now cardiac patients — and anyone else — can use METs to track exercise intensity on an indoor bike.
- Speed: You can always access speed mode to track exercise intensity by speed (MPH or KM/H).
Compatible with more health and fitness apps
The Studio display can send your cadence, speed, power, and heart rate data to third-party health and fitness apps. It syncs with devices using ANT+ and Bluetooth® CSCS, CPS, and FTMS.
Compatible with all major projection systems
The display can send rider data to leading projection systems — including Keiser M Group App. But while connected to a projection system, it can also share data with apps on a user's smartphone or tablet at the same time.
For All Riders M Series App
- Graphic real-time ride data.
- Personalized metrics based on your profile data.
- Capture and save your full workout history.
- Guided workout sessions.
- FTP testing and estimation tool.
Road Bike Frames Vary to Fit Riders of Different Sizes
Keiser’s v-shaped frame mimics the sizing of different road-bike frames.
The M3i Indoor Bike’s seat and handlebars adjust for legs, torsos, and arms of different sizes.
Keiser Moved Vulnerable Mechanisms Out of the “Sweat Zone”
By moving the flywheel to the rear, Keiser moved the bike’s drivetrain and other vulnerable parts out of the rider’s “sweat zone.”
- Reduces the need for more maintenance.
- Protects against corrosion.
- Extends the life of the bike.
Designed for Magnetic Resistance
We designed the industry's first indoor bike with magnetic resistance and we designed a drivetrain to go with it. Then, we added it to our elliptical.
The key to the M5 Series drivetrain is its single Poly-V belt. It transmits high loads over very small pulleys. This enables M5 Series ellipticals to achieve a smooth and quiet experience.
Poly V-Belt
The choice of automotive manufacturers
The Poly-V belt is the preferred choice of automotive manufacturers. They use it to run the accessories on the front of car engines because it’s so quiet, durable, and reliable.
Curved Crank Arms to Fit Every Rider
We curved the crank arms on our indoor bikes to fit a wider variety of riders and their workout shoes.
Built to Withstand Demands of Group Cycling
- Stronger bearings tested for static and dynamic loads experienced when rider gets on, off, and rides the bike.
- Forged chromoly steel axle heat-treated for maximum strength.
- Standard workout shoes or cycling shoes with SPD cleats.
Easy to Transport
With fewer parts, a lighter flywheel, and precise weight distribution, M3 Series bikes are very easy to move. And their small footprint makes them easy to place and store.
Keiser Studio Display
The Keiser Studio Display, compatible with the M3i Studio Line, is designed for versatile use in homes, studios, and medical facilities. It offers advanced features to enhance the indoor cycling experience.
Its key feature, Ride by Color™, allows users to enter their FTP and HRmax for color-coded training zones, making workout intensity monitoring straightforward and engaging. The display supports 72 gears for precise resistance adjustment and is compatible with the latest ANT+™ and Bluetooth® fitness technologies.
The display is eco-friendly, operating without cords or batteries thanks to a pedal-powered generator. It features an 86% larger screen compared to the previous model and provides options for tracking workout intensity in various ways, including 5, 6, or 7 FTP zones.
| Receive HR | ANT+, Bluetooth |
| Send HR | Bluetooth |
| Connectivity | Wireless connectivity via ANT+, Bluetooth 4.0 (CSCS, FTMS, CPS, Keiser Proprietary) |
| Backlight | Auto backlight display |
| Reset Metrics | Yes |
| Interval Metrics | Start and stop interval metrics (no delay) |
| Personal Profile Memory | Optional for home users |
| Metrics | Personalized metrics based your profile data (weight, FTP, HRmax) |
| Display Color | Ride by Color™ LCD display in FTP and Heart Rate training modes with progress bar and zone number |
| Bike Data | Odometer, Bike ID |
| Other Metrics | Watts, RPM, KCal, Duration, Trip Distance, Heart Rate, Gear |
| Training Modes | Center display with % of FTP, % of HRmax, METs (Metabolic Equivalents), Speed |
| Power Accuracy | TUV certified |
| Model Number | Model 5508 |
| Height | 44" / 1118 mm |
| Width | 26" / 661 mm |
| Depth | 51" / 1296 mm |
| Weight | 87 lbs / 40 kg |
| Max User Weight | Up to 350 Lbs. |
| Height Range | 5'- 6'2" |
| Power | Generator with super capacitor |
| Resistance Type | Magnetic Resistance |
| Seat Adjustment | 4-Way Seat Adjustment |
| Handlebar Adjustment | 2-Way Handlebar Adjustment |
| Gears | 72 |
| Handlebars | Studio Align Handlebars |
| Display | Studio Display |
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