4iiii


4iiii Fliiiight Smart Trainer

£479.00 £399.00 Sale

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

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Key Benefits
  • Zero-Contact Resistance — Magnetic system does not rub on the tyre or rim.
  • Quiet Training — Minimal mechanical trainer noise.
  • Compact Storage — Folds flat when not in use.
  • Connected Workouts — ANT+ FE-C and Bluetooth FTMS controls.
  • Portable Power — Approximately two hours of battery-powered riding.
  • Structured Sessions — Supports ERG and simulated-course modes with compatible apps.

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.

Technical 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
Suggested Use & Compatibility

For indoor cyclists with an eligible aluminium-alloy-rim rear wheel. Not compatible with carbon rims, and some aluminium rims with unsuitable joint construction are excluded. Supports 650C–700C and 26–29-inch wheels, subject to setup adjustment. Standard skewer dropouts are supported; thru-axle bikes may require a suitable third-party adapter. Compatible apps must support ANT+ FE-C or Bluetooth FTMS trainer control. Check wheel-rim construction, axle spacing and clearance before purchase. Availability and ongoing accessory support should be confirmed for this older trainer model.

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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