Tacx FLUX S Smart Trainer

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Keep track of your performance and progress with reliable, consistent measurements. That includes power, speed and cadence, measured accurately within 3%.


The well-balanced design and large footprint of the FLUX S Smart trainer ensures maximum stability, even during the most explosive sprints, up to 1,500 watts.


Get the most out of your intense workouts by training on realistically simulated inclines up to a 10% gradient.


At 15.4 lbs (7.0 kg), a heavy flywheel ensures a realistic ride feel and good responsiveness.


This direct-drive trainer is designed to bring vibration and noise levels to the absolute minimum, resulting in one of the most silent flywheel-equipped bike trainers available.

It's fully connected, so you can train your way.


The FLUX S Smart trainer communicates via BLUETOOTH® Smart technology and ANT+® FE-C protocol, so it works with a number of popular training apps such as TrainerRoad and Zwift.


You can opt to use the trainer in stand-alone mode. When not connected, it will simulate a flat road; the faster you ride, the higher the resistance.


Connect FLUX S Smart to multiple devices simultaneously, so you can enjoy Tacx software and track your performance on your Garmin bike computer at the same time.


Enjoy a library filled with more than 100 high-quality, real-life videos that let you experience the rush of riding the steep hills of the Alps or the cobblestone roads of Milan.


Take advantage of structured training plans, designed for your fitness level to help you meet your goals. Race live opponents, upload GPS data, ride with 3-D maps and more.

  • Physical dimensions 26.4"" x 25.3"" (670 x 642 mm)
  • GPS No
  • Weight
  • 50.3 lbs (22.8 kg)
  • Maps & Navigation
  • Basemap No
  • Ability to add maps No
  • Features
  • VIRB® Remote No
  • Water rating No
  • ClimbPro Ascent Planner No
  • Control by
  • Smartphone, tablet, ANT+ bike computers, stand alone, computer connection via ANT+ antenna
  • On-device course creator No
  • Customizable data pages No
  • Auto scroll No
  • Electrical requirement 110-240 V
  • Magnets 8 permanent ferrite magnets and 8 electromagnets
  • Flywheel 15.4 lbs (7 kg)
  • Weather alerts No
  • Ambient light sensor No
  • Accuracy <3%
  • Downloadable training plans No
  • Virtual Partner No
  • Mass inertia 50.3 lbs (22.8 kg)
  • Smart notifications No
  • ANT+ electronic shifting No
  • Height 18.1"" (460 mm)
  • Max power 1500 watt
  • Measured Power Yes
  • Weather No
  • Suitable cassettes
  • Shimano and SRAM: 8-11 speed. Campagnolo, SRAM XD and XD-R body (sold separately). Not suitable for specialized SCS system.
  • Interval training No
  • Max incline 10%
  • Shimano Di2 Synchro Shift integration No
  • Measured Speed Yes
  • Battery save mode No
  • Color display No
  • Measured Cadence Yes
  • Edge® remote No
  • Courses No
  • Read out on
  • Smartphone, tablet, bike computer, computer with ANT+ antenna
  • Galileo No
  • Recovery advisor No
  • Output Speed, cadence, power
  • Suitable axles
  • Width of rear fork: Race 130 mm, MTB 135 mm. Adapters for other widths available.
  • Physiological measurements (may require use of additional accessories such as heart rate strap and/or power meter) No
  • Bike alarm No
  • Cycling Dynamics compatible No
  • VO2 max No
  • Cycle Map (routable cycling-specific street map) No
  • Max brake force 65N
  • Text response/reject phone call with text (Android only) No
  • Physio TrueUp No
  • Compatible with Varia lights No
  • Training Effect No
  • Wireless communication
  • ANT+ connectivity, BLUETOOTH wireless technology
  • Integrated TrailForks trail data No
  • Accelerometer No
  • Segments No
  • LiveTrack No
  • Assistance No
  • Calories burned No
  • Auto Lap® No
  • Varia remote No
  • Auto Pause® No
  • Calibration Spin down
  • Advanced workouts No
  • Connect IQ (downloadable watch faces, data fields, widgets and apps) No
  • Touchscreen No
  • Smart trainer control No
  • Power meter compatible No
  • Rider-to-rider messaging No
  • Incident Detection No
  • Group LiveTrack No
  • Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) No
  • In-ride power compatible (Garmin Charge battery pack) No
  • Barometric altimeter No
  • Max torque 22.1 Nm
  • Compatible with Varia radar (rear-facing radar) No
  • Simulation of descent No
  • MTB Dynamics No
  • Race an Activity No


Colours Grey
Brand Tacx
Model Year 2020
Barcodes 8714895058733
SKUs / Part Numbers T2900S.62

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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