Tacx Flux S Smart Magnetic Home Trainer

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A smart trainer that checks all the boxes.

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Product description

Tacx Flux S Smart Magnetic Home Trainer

Looking for a smart direct-drive trainer? FLUX S Smart is the ideal indoor training companion — made to help you sweat while cycling with your favorite apps.

  • You care a lot. So we measure your data to within 3% accuracy.
  • Go ahead and launch into full beast mode. This trainer is extra quiet.
  • Climb that leaderboard with your favorite apps, including Zwift and Tacx.
  • Feel the burn. Simulated inclines can withstand your hardest sprints.
  • Ride full out or standing on the pedals. This trainer can take it.


Ride hard, train with confidence.

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

READY TO SPRINT                     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.

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

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

SMOOTH AND SILENT             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.

HIGHLY COMPATIBLE                    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.

ABLE TO STAND ALONE                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.

DEVICE COMPATIBILITY                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.

TACX TRAINING SOFTWARE       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.

TACX TRAINING PLANS                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.

Technical Specifications

PHYSICAL DIMENSIONS                   26.4" x 25.3" (670 x 642 mm)

WEIGHT                                                 50.3 lbs (22.8 kg)

HEIGHT                                                   18.1" (460 mm)

WIRELESS COMMUNICATION       ANT+ connectivity, BLUETOOTH wireless technology

CONTROL BY                                        Smartphone, tablet, ANT+ bike computers, stand alone, computer connection via ANT+ antenna

READ OUT ON                                     Smartphone, tablet, bike computer, computer with ANT+ antenna

MAGNETS                                             8 permanent ferrite magnets and 8 electromagnets


SUITABLE CASSETTES                        Shimano and SRAM: 8-11 speed. Campagnolo, SRAM XD and XD-R body (sold separately). Not suitable for specialized SCS system.

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

MAX POWER                                        1500 watt

MAX INCLINE                                       10%

MAX TORQUE                                      22.1 Nm

MAX BRAKE FORCE                           65N

FLYWHEEL                                             15.4 lbs (7 kg)

MASS INERTIA                                     50.3 lbs (22.8 kg)

CALIBRATION                                      Spin down

OUTPUT                                                 Speed, cadence, power

ACCURACY                                            <3%

MEASURED SPEED                             √

MEASURED CADENCE                      √

MEASURED POWER                          √

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