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Tacx Flux S Smart Trainer T2900.S

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Product Details

Tacx Flux S Smart Trainer T2900.S

Accessible direct drive with full Smart functionality

The Tacx Flux inherits many of the Tacx Flux 2 Smart Trainer features - direct drive and electro brake - but at a more affordable price.

By changing the design of its iconic predecessor, the FLUX S Smart gained a wider bike compatibility range. It has been redesigned in order to fit long cage derailleurs. The FLUX S Smart is a reliable and powerful trainer with a smooth ride feel. This interactive direct drive trainer makes Smart training accessible to any cyclist. ANT+ and Bluetooth enables you to connect to your favourite applications.

  • Measuring and receiving performance data - measures speed, cadence and power and transmit this via ANT+ and Bluetooth Smart to your device(s)
  • Open wireless communication with Tacx phone App and third party apps such as Garmin Connect
  • The trainer's smart features require a wall socket power source.
  • Standalone training - alternatively, you can use the Tacx Flux as a regular home trainer that simulates riding on the flat when there is no convenient power source
  • Tacx's heavy flywheel helps create a more realistic rhythmic ride and overcomes the 'choppy' feel you might experience on a less sophisticated trainer
  • Eight strong electro magnets generate up to 1500 Watts
  • Dial in any level of resistance that is humanly possible
  • Suitable axles - Width of rear fork: Race 130 mm, MTB 135 mm. Adapters for other widths available
  • Suitable cassettes - Shimano & SRAM: 8 t/m 11 speed. Campagnolo body sold separately
  • Supplied with - Quick release for road bikes and mountain bikes (5mm) , 1 month Tacx Premium software

'When we combined Smart technology with a direct drive trainer, the indoor training experience was elevated to a totally new experience level. The global response to the NEO has been phenomenal and this has fuelled our desire to develop a range of trainers that will make this training experience available to a larger group of cycling enthusiasts. The result is highly functional, capable and intuitive device with its own distinctive silhouette.

The FLUX is a fully interactive Smart trainer, that connects you to all your favourite apps. Hosting the dual band ANT+ FE-C and Bluetooth technology, it communicates with and can be controlled by any device of your choice. The responsive Smart electronics make sure that the smallest fluctuation in power settings is converted into an alteration in resistance, making sure that each watt is transferred accurately to your body. Compatible with cycling apps like Zwift.

The desire to create an accessible direct drive has meant designing a whole new product. The best riders are able to produce 850 watts for 1 minute, or maintain 450 watts for 20 minutes. The FLUX has been designed to deliver exactly these power values and is thus more than capable of fulfilling the needs of the average cyclist. Driven by 8 strong electro magnets the FLUX is even able to generate a stunning 1500 watts during a sprint. The trainer feels very smooth due to its 7 kilogram flywheel. The FLUX has a simple calibration process ensuring tension and power measurements, accurate within 5%, whilst the products internal structure has been tuned to simulate a true road feel.

This inner structure has also meant developing a new outer design: a casing that covers and complements the product whilst honouring the looks of its bigger brother. Its compact design clearly differentiates the FLUX from other indoor trainers whilst subtly being a family member of the NEO, with the same stealth-like form language and durable, sophisticated finish.

The FLUX has been designed to complement Tacx’s direct drive assortment beautifully and it can be seen as the most accessible interactive Smart direct drive trainer to date.'


Edinburgh Bicycle support recycling electrical equipment.

Technical Specifications

Tacx Flux S Smart Trainer T2900.S 
Type of trainerInteractive Smart direct drive with electric brake
Magnets8 Permanent ferrite magnets & 8 electromagnets
Electrical requirements110-240 Volt
Power indicator (Wattage)None
Connection indicator (ANT/BT)2 LEDs
Firmware upgradableYes
Supplied withQuick release for road bikes and mountain bikes (5mm) , 1 month Tacx Premium software
Suitable bikesRace, Tri & MTB
Suitable cassettesShimano & SRAM: 8 t/m 11 speed. Campagnolo body sold separately
Suitable AxlesWidth of rear fork: Race 130 mm, MTB 135 mm. Adapters for other widths available
Max. power (40 km/h)1500 Watt
Max. Incline10%
Simulation of descentNo
Max. torque22.1Nm
Max. brake force65N
FlywheelActual, 7 kg
CalibrationSpin down


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.