A black 4iiii Fliiiight Smart Trainer for indoor cycling, featuring a foldable design and mounted on a gray floor against a dark background.
A black 4iiii Fliiiight Smart Trainer for indoor cycling, featuring a foldable design and mounted on a gray floor against a dark background.

4iiii

4iiii Fliiiight Smart Trainer

£479.00 £449.00 Sale

Quiet, fold-flat smart trainer with zero-contact resistance, ANT+ FE-C/Bluetooth FTMS and rechargeable power.

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  • 30-day returns
  • Need help choosing? Contact our team

The 4iiii Fliiiight is a wheel-on smart trainer that uses magnetic induction resistance without touching the tyre or rim. Its zero-contact design helps avoid tyre wear and keeps operation quiet, while a lightweight, fold-flat frame suits riders who need to store the trainer between indoor sessions.

ANT+ FE-C and Bluetooth FTMS connectivity allow supported training apps to control resistance for structured workouts and virtual routes. A rechargeable battery provides approximately two hours of wireless riding, with the option to use external power during a session. The trainer also features a virtual flywheel effect to simulate riding inertia.

Wheel compatibility is essential: Fliiiight is intended for suitable aluminium alloy rims with a welded or aluminium sleeve joint, not carbon rims. Check wheel size, rim construction, axle arrangement and app compatibility before ordering.
Product Specifications
  • Resistance: Non-contact magnetic induction
  • Claimed power accuracy: ±1%
  • Maximum power: 2,200 W
  • Maximum simulated slope: 7%
  • Cadence range: 40–160 rpm
  • Connectivity: ANT+ FE-C and Bluetooth FTMS
  • Battery: Rechargeable 3,000 mAh lithium-ion
  • Wireless use: Approximately two hours; can operate while externally powered
  • Charging: USB-C, 5 V / 2 A
  • Water resistance: IPX2
  • Weight: Approximately 7.9 kg
  • Dimensions set up: 552 × 741 × 450 mm
  • Dimensions folded: 565 × 470 × 110 mm
  • Wheel sizes: 650C–700C or 26–29 inches
  • Wheel rim: Suitable aluminium alloy with welded or aluminium sleeve joint
Why We Choose 4iiii

We choose 4iiii because they’re at the forefront of cycling innovation, delivering world-class power meters and performance technology trusted by both pro teams and everyday riders. Their mission aligns with ours: making advanced training tools accessible, accurate, and reliable for all athletes.

  • Proven Accuracy – +/-1% precision power measurement for trusted performance data.
  • Innovation-Driven – Pioneers in lightweight, compact power meter design.
  • Ride Ready – Durable, weatherproof tech built for real-world cycling conditions.
  • Trusted by Professionals – Used by elite WorldTour cycling teams worldwide.

That’s why 4iiii is part of the North Sports collection — giving riders the tools they need to train smarter, push harder, and achieve their goals.

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