The FLUX S Smart checks all the boxes when you are looking for a Smart direct drive trainer.

Reliable, accurate, silent, strong and offering a good ride feel. This bike trainer is the ideal indoor training companion for the many hours sweating and cycling with your favourite apps.


Smart Trainer - The Flux S Smart pairs seamlessly with most popular training apps and software to create the ultimate indoor training environment. Easily connect to cycling apps like Zwift, Tacx and TrainerRoad.

Accurate Reliable - A reliable, accurate and consistent power measurement is key to keep track of your performance and progress. This is exactly what the FLUX S Smart is designed for, it measures your power accurately within 3,0%.

Smooth Ride Feel - A smooth ride feel and swift reponsiveness are key to replicate the experience of your outdoor rides. With its large flywheel, the FLUX S ensures the same sensation of riding on the road.

Extremely Silent - The Flux S Smart is designed to bring vibrations and noise levels to the absolute minimum. This resulted in a very silent flywheel equipped bike trainer.

Stand Alone - The smart electronics of this bike trainer allow you to train stand alone, without any software. It follows a progressive power curve, the resistance will increase progressively when you ride faster. Precisely replicating riding on a flat road.

Connection Indicators - Intuitive LED lights provide a visual confirmation when the trainer is powered and connected to a device over ANT+ or Bluetooth.

Stable Frame - Designed to withstand the most intense training sessions, this bike trainer is built to last. A large footprint ensures maximum stability and durable materials give the quality you would expect.


Type of trainer Interactive Smart direct drive with electric brake

Magnets 8 Permanent ferrite magnets & 8 electromagnets

Transmission None

Electrical requirements 110-240 Volt

Power indicator None

Connection indicator (ANT/BT) 2 LEDs

Firmware upgradable Yes

Suitable cassettes Shimano & SRAM: 8 - 11 speed. Campagnolo body sold separately

Suitable axles Width of rear fork: Race 130 mm, MTB 135 mm. Adapters for other widths available

Suitable bikes Race, Tri & MTB

Supplied with Quick release for road bikes and mountain bikes (5mm) , 1 month Tacx Premium software

Max. power (40 km/h) 1500 Watt

Max. incline 10%

Simulation of descent No

Max. torque 22.1 Nm

Max. brake force 65 N

Flywheel Actual of 7 kg

Mass inertia 22.8kg

Calibration Spin down

Footprint (lxw) 670 x 642mm (26.4 x 25.3 in)

Height 460mm (18.1 in)

Dimensions when folded Not foldable

Weight 22.8kg (50.3lbs)

Article number T2900S

Data Output and Control

Wireless communication ANT+ FE-C , Bluetooth Smart open

Control by Smartphone , Tablet , ANT+FE-C bike computers , Stand alone , Connect to computer via ANT+antenna

Output Speed , Cadence , Power

Read out on Smartphone , Tablet , Bike computer , Sports watch , Computer with ANT+ antenna

Accuracy <3%

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