Keiser Indoor Cycle M3i Studio

Keiser M3i Studio – The premium indoor bike with an innovative studio display
The Keiser M3i Studio (5508BC) is the professional version of the legendary M3i series and sets new standards in indoor group cycling. Equipped with the exclusive Studio Display, it not only provides precise performance data but also innovative visual feedback for maximum training motivation – ideal for studios, fitness centers, and demanding home workouts.
Studio Display – Intelligent training at the highest level
The high-resolution Studio Display displays all important metrics in real time: watts, RPM, calories, distance, stride frequency, heart rate, and stride selection (72 steps).
The special feature: The „Ride by Color» function visualizes the current performance zone in FTP and heart rate training modes through color changes with a progress indicator – perfect for intensive interval training without constantly having to look at numbers. When combined with the Keiser M Series Group App, the M3i Studio Plus becomes the ideal solution for professional group cycling classes with real-time projection.
Enhanced display features:
Personalized metrics based on profile data (weight, FTP, HRmax)
Storage of personal profile data – optional for home use
Reset function for quick restart
Power Generator with Super Capacitor – no battery required
Start and stop interval metrics without delay
Auto backlight display for optimal readability
Training modes: Center display with % FTP, HRmax %, METs (Metabolic Equivalent), speed
Bike data: odometer, bike ID
Connectivity & App Compatibility
The Studio Display offers comprehensive wireless connectivity:
Wireless: ANT+™, Bluetooth® 4.0 (CSCS, FTMS, CPS, Keiser Proprietary)
Heart rate reception: ANT+™, Bluetooth®
Heart rate transmission: Bluetooth®
Compatible apps (selection):
BKool Fitness (iOS & Android) – Power, Cadence, Heart Rate ✓
Spivi Home (iOS) – Power, Cadence, Speed ✓
Intelligent Cycling (iOS) – Power, Cadence ✓
Zwift, Peloton Digital, GOInd, BeTested, Keiser M Series Group App
Even during the projection, training data can be sent in parallel to personal devices.
Perfect technology for the highest demands
The maintenance-free Kevlar pulley drive with magnetic resistance system guarantees a virtually noise-free, smooth riding experience. With 72 finely tuned resistance levels, you can precisely control every workout – from relaxed recovery rides to maximum sprints. The integrated quick stop function provides additional safety during intense sessions.
Ergonomics & Comfort without compromise
The V frame construction offers maximum stability with a user weight of up to 160 kg. The handlebar is vertically adjustable, the saddle is both horizontally and vertically adjustable – ideal for body sizes between 150 and 188 cm. The combination pedals (SPD-click system + basket) allow for flexible training with clogs or sneakers. The ergonomic comfort saddle, stretch pads, bottle holder and media tray complete the package.
Technical specifications at a glance
Resistance system: magnetic brake with 72 stepless gears
Drive: Maintenance-free Kevlar V-belt with protective cover, fixed-gear drive
Display: Studio Display with „Ride by Color» LCD display
Connectivity: Bluetooth® 4.0 & ANT+™ (CSCS, FTMS, CPS, Keiser Proprietary)
Metrics: Watt, RPM, Calories, Time, Distance, Heart Rate, Mode selection, METs, % FTP, HRmax %, Speed
Training modes: FTP-based, heart rate-based, free ride
App compatibility: Zwift, Peloton Digital, BKool, Spivi, Intelligent Cycling, GOInd, BeTested, Keiser M Series Group App, and more.
Adjustability: Saddle horizontal + vertical, handlebar vertical (2-Way)
Handlebars: Studio Align Handlebars
User height: 150–188 cm (5’0″–6’2″)
Max. user weight: 160 kg
Pedals: Combination pedals (SPD clipless / toe clips)
Extras: Quick stop function, bottle holder, stretch pads, media tray, transport wheels
Power supply: Power Generator with Super Capacitor (no battery required)
Color: Black with red accents
Mass (L × W × H): 129.6 × 66.1 × 124.5 cm
Weight: approx. 42 kg
Keiser SKU: 5508BC