Keiser Fitness M3i Total Body Trainer

Keiser M3i Total Body Trainer

The Keiser M3i Total Body Trainer is the newest innovation in the Keiser M Series Cardio Line, combining the smooth, whisper-quiet magnetic resistance system of the Keiser M3i Indoor Cycle with the versatility of a full-body trainer. Designed for those who want to engage both the upper and lower body—or isolate each independently—this machine delivers a highly effective, low-impact workout for all fitness levels.

Developed through over a decade of research and real-world feedback from elite trainers and top fitness clubs, the M3i Total Body Trainer offers exceptional durability, cutting-edge performance tracking, and unmatched ride smoothness. Its corrosion-resistant frame, wear-free resistance system, and virtually maintenance-free operation make it an ideal choice for both home and commercial use.

Key Features & Benefits:

• Full-body or isolated training – Engage both arms and legs together or target upper or lower body separately.

• Award-winning M Series technology – Same proven design and ride feel as the Keiser M3i Indoor Cycle.

• Eddy Current Magnetic Resistance – Smooth, precise, and contact-free system that never wears out.

• Advanced console with Power Meter – Tracks watts, RPM, heart rate, and more for performance-driven training.

• Bluetooth® connectivity – Sync with popular fitness apps and wireless heart rate monitors.

• Ultra-durable build – Corrosion-resistant materials and minimal maintenance requirements.

• Whisper-quiet operation – Perfect for early mornings, shared spaces, or noise-sensitive environments.

The Science Behind Eddy Current Resistance:
Keiser’s eddy current system uses two powerful magnets positioned near the flywheel. As the flywheel spins through the magnetic field, it generates resistance without physical contact—resulting in zero wear on parts and a consistently smooth ride. Resistance increases naturally with speed, mirroring the physics of outdoor cycling, and can be precisely adjusted to match your training goals.

Why Power Matters:
Unlike traditional cardio equipment where resistance is tied to speed, the M3i lets you fine-tune intensity for optimal power output. Power (watts) = Force × Velocity, meaning the harder you push and the faster you pedal, the more work you produce. This metric-driven approach benefits everyone—from older adults improving functional strength to elite athletes chasing performance gains.

Details:

• Drive System: Belt drive with magnetic resistance

• Resistance Type: Eddy Current Magnetic

• Console: Backlit display with power meter and Bluetooth®

• Training Modes: Full body, upper body only, or lower body only

• Frame: Corrosion-resistant, commercial-grade construction

• Maintenance: Virtually maintenance-free

Perfect For:

• Home users wanting versatile, total-body cardio in one compact machine

• Commercial facilities seeking durable, low-maintenance performance equipment

• Athletes training with precision metrics like watts, cadence, and power zones