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  • Overview
  • Keiser introduces intelligent cycling and the most technologically advanced indoor cycle.

Product details

From the company that revolutionized the indoor cycling industry by introducing magnetic resistance comes the Keiser M3i Indoor Cycle, the first group bike built to fit riders of all body shapes and sizes. Equipped with Bluetooth®, the Keiser M3i Indoor Bike transmits to receivers for projection and partners with smartphones or tablets.

The Keiser M3i Indoor Cycle 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


  • Bluetooth® Wireless Technology
  • Automatic backlit digital display
  • V-shape frame and handlebar combo to accommodate all riders
  • Rust-resistant design includes stainless steel hardware and rear flywheel
  • Revolutionary re-designed Keiser Bike Pedal
  • Quiet, low-maintenance magnetic-resistance belt-drive system
  • Magnetic resistance delivers road-bike experience and ensures a smooth ride
  • Lightweight and superior ease of transport
  • With more than 300,000 M Series bikes sold, there’s no more proven bike worldwide
  • Robust adjustment knobs require less maintenance than cam-lock
  • Four-way adjustable seat
  • Water bottle holder
  • Keiser Education and Certifications available
  • Height: 45″ / 1143 mm
  • Width: 26″ / 660 mm
  • Length: 49″ / 1245 mm
  • Weight: 85 lbs / 38.56 kg