4iiii Fliiiight Smart Trainer


Silent. Portable. Zero Contact. Introducing the 4iiii Fliiiight Smart Trainer.With near silent operation and ease of setup, the Fliiiight Smart Trainer raises the bar for your next sweat-inducing session on your favourite training app.

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Near Silent Ride

Integrated powerful magnets generate resistance against your wheel without any contact, allowing for a near silent training experience.

Compact and Portable

Designed to fold flat for easy storage or transport and 2+ hours of battery-powered operation means you can train anywhere, anytime.

Zero Contact Technology

Induction technology applies resistance for a realistic road feel with zero contact and no tire wear. No trainer tires, no wheel removal—your bike is always outdoor or race ready.




4iiii is a Canadian sports technology company based in Cochrane, Alberta at the threshold of the Rocky Mountains and in the heart of a recreational paradise. We are a team of engineers and athletes dedicated to improving personal performance through the development of superior training tools. Our products are high tech and deliver highly accurate and easily accessed data.


  • Accuracy: within ±1%.
  • Power range: 0 to 2200 Watts (@ 75km/h).
  • Maximum Slope: 7%.
  • Cadence Range: 40 - 160 RPM.


  • Dimensions (Set Up): L 552mm x W 741mm x H 450mm (21.7´´ x 29.2´´ x 17.7´´).
  • Dimensions (Stored): L 565mm x W 470mm x H 110mm (22.2´´ x 18.5´´ x 4.3´´).
  • Total Weight: 7.9kg (17.4lb).


  • Communication protocols: ANT+ FE-C, Bluetooth® FTMS.
  • Supported training platforms: Windows PC (ANT+). Mac OS (ANT+ or Bluetooth®): iOS (Bluetooth). Android (ANT+ or Bluetooth®).


  • Compatible Wheels: Aluminum alloy rims with a welded or aluminum sleeve joint. Use tool to confirm compatibility.
  • Wheel sizes: 650C-700C or 26´´-29´´.
  • Thru-axle compatibility: With thru-axle adapter.


  • Wireless Riding Time: 2-6 hours (can be wired during use).
  • Battery Type: Rechargeable lithium ion pouch cell, 3000mAh.
  • Charging Cable: Type C USB, 5V 2A charging cable with anti-trip breakaway.
  • Operating and Charging Temperature: 5°C to 45°C (41°F to 114°F).
  • Storage Temperature: -20°C to 45°C (-4°F to 114°F).
  • Water Resistance: IPX2.


  • App features on iOS and Android.
  • View real-time and historical data.
  • Over-the-air firmware upgrade capability for adding new features and updates.
  • Custom naming to easily pick out your trainer in a crowd.
  • Battery status indicator.
  • Setup and calibration.
  • Diagnostics tools