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Tacx Flux 2 Smart T2980 Cycletrainer

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Description of Tacx Flux 2 Smart T2980 Cycletrainer

The Tacx Flux Smart T2980 cycletrainer features a compact and now even more realistic direct drive - interactive and maintenance-free. The swift response of the Smart electronics and the 7.6kg flywheel transmit the slightest fluctuations in resistance directly and accurately to your legs. Of all the Tacx trainers, the Flux has the heaviest actual flywheel with a mass inertia of 32kg. The greater the flywheel effect, the more realistic the cycling experience.

The Flux Smart uses ANT+ and Bluetooth® Smart for communication and can therefore be connected wirelessly to smartphones and tablets. The ANT+ FE-C protocol enables you to train with Tacx apps as well as with third-party apps such as Zwift and TrainerRoad. You can also train stand-alone. If you do not connect the Flux, it will simulate a flat road.

Features of the Tacx Flux Smart T2900 cycletrainer:

  • Max resistance: 2000 W
  • Power accuracy: less than 2.5%
  • Max. simulated slope: 16%
  • Flywheel: 7.6kg (16.8lb)
  • Mass inertia: 32kg (70.5lb)
  • Resistance unit: Electro brake
  • Control: Interactive
  • Wireless connections: Bluetooth & ANT+
  • Power supply: 110-240V
  • Suitable axles: Race 130mm, MTB 135mm, 142x12mm & 148x12mm
  • Suitable cassettes: Shimano & SRAM: 8 t/m 11 speed (Campagnolo body sold separately)
  • Improved ride feel and specifications
  • Fits bikes with long cage derailleur


Flux Smart Electromagnetic brake

The Flux Smart cycletrainer works with an electromagnetic brake with the advantages of being silent and maintenance-free at the same time. Thanks to the electromagnetic brake a resistance can be set that you also experience on the road or in a climb. The resistance unit provides a particular cycling experience by increasing or reducing the resistance on the rear wheel.

When cycling in a virtual terrain or in a film you can get outside the range for which the brake is intended. To allow cyclists with a motor brake and those with an electric brake to ride races against each other in multiplayer mode*, Tacx has developed the virtual speed. This concept translates the energy supplied into a certain speed, which can guarantee a fair contest. If this speed differs from the speed at which the rear wheel is running, the virtual speed will be shown on the screen in red.

* For this the Tacx Trainer Software 4 Advanced (included in the optional available Upgrade Smart package) and a license (7-days trial period) are required. See also "Software and apps".

Software and apps for Flux Smart

The Tacx Flux Smart trainer can be connected to your smartphone, tablet or computer with ANT+ or Bluetooth® Smart in order to use Tacx software and apps or that of others. With the possibility to use the trainer also stand-alone you are completely free in choosing your indoor cycling workout.

With the Tacx software and apps you may regulate your training ride by heart rate, gradient and power, or you may pick a famous route or race. Besides that, you may compete with other riders online. The training options vary by application:

Tacx Training App for smartphones

The Tacx Training App allows you to train freely based on slope, power or heart rate. The Analyser presents the performance data on your smartphone's display. The saved data can be analysed afterwards via the Tacx Cloud and with export you send the file with your results to the given email-address. This file can be uploaded in trainings software like Strava and Trainingpeaks.

Tacx Cycling App for tablets

The Tacx Cycling app is a simplified version of the Catalyst training software, the Analyser and Real Life Video to ride existing courses.

Catalyst offers professional training programs and fitness tests for a scientific analysis of your training session. Train on heart rate, power output or slope. Analyser presents the recorded training data on the screen of the tablet. Your performance is displayed in a graph.

Cycling in a Tacx film makes a training session more enjoyable and adventurous. The speed of the film is influenced by your cycling pace. If you are cycling up a mountain, the brake of your trainer will generate so much resistance that you can actually sense the percentage of incline.

Third-party software

All Tacx trainers are freely accessible since June 2015 as they are able to speak the ANT+ FE-C language. You can now adjust the resistance of our Smart trainers and check your speed, cadence and power with other software. The following software packages speak this new language too and allow you to control Tacx trainers: Zwift, TrainerRoad, Kinomap and Bkool.

Note: The cassette is not included.
Construction type: flywheel cycletrainer
Included in delivery: trainer with an electromagnetic brake
cap for adjusting over locknut distance
quick release
without cassette and lockrings
Speciality: direct drive
electromagnetic brake
ANT+ and Bluetooth Smart
Fits bikes with long cage derailleur

  • Description
  • Fact Sheet
  • Ratings (4)

Fact Sheet of Tacx Flux 2 Smart T2980 Cycletrainer

Product Name: Tacx Flux 2 Smart T2980 Cycletrainer
Manufacturer: Tacx
Item Code: TAC393921
activity: Bike
usage bikesport: Hometrainer
wheel size: 26" (559mm), 26" (571mm), 27,5" / 650B (584mm), 28" (29") (622mm), 26" (590mm), 28" (635mm)
transmission standard: ANT+, Bluetooth
trainer version: Cycletrainer
trainer functions: PC compatibility (included or optional), App compatibility (included or optional), Video controlled, Multiplayer
trainer brake: Magnetic Brake
Model year: 2020
Color: Black
manufacturer item code: T2980
Manufacturer page:
  • Description
  • Fact Sheet
  • Ratings (4)


(4 Ratings)
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Customer Reviews

Anonymous Dec. 20th 2020

Zu komplizierte Elektronik, Informatik Studium erforderlich um es bedienen zu
Die Elektronische Steuerung bremst mich immer wieder beim Training ein. Die Einstellung ist so kompliziert, dass sich keiner auskennt. Das müssen doch lauter Wunderwuzzis sein, die das nicht kritisieren. Ich will ganz einfach nur Fahren, sodass mir die Watt die Geschwindigkeit angezeigt wird. sonst habe ich keine Ansprüche. Das kann das Gerät nicht. Ich brauche keine vorgegebene Streckenführung, die mir das Gerät offenbar aufdrängen will. Zum Kotzen. Dieser Trainer stellt sich immer so streng von selbst ein, dass ich nicht einmal mit der leichtesten Übersetzung auf eine vernünftige Drehzahl kommen kann. Dabei wird nur wirres Zeuge angezeigt.

Bike24: Wir bedauern die Schwierigkeiten mit dem Produkt sehr. Nehmen Sie bitte Kontakt mit unserem Kundenservice auf, wenn Sie das Produkt bei Bike24 erworben haben. Das Service-Team von Bike24 ist Ihr Partner auf dem Weg zu einer zufriedenstellenden und nachhaltigen Lösung.

Anonymous Oct. 30th 2020 28 - 35 years Amateur Male

ERG mode / slope simulation not working properly
Quite silent and sturdy.
Very nice "road" feel.
But on my unit the ERG mode is not working properly, failing to reach resistance bigger then ~260 watts.
The slope simulation is also not real. The software does not increas the resistance but rather reduces my speed in the apps.

Bike24: We apologize for the inconvenience caused by the product. If it was purchased at Bike24, please get in touch with our customer support. The Bike24 service team is your partner on the way to a satisfying and lasting solution.

Anonymous Apr. 15th 2020

I have bad experience as the trainer has permanently mistake. Support team is just telling standard procedures like up date software but not give real solution. There is a red battery icon in utility app. But it seems support team doesn't know what it means. Also there is no any user manual to find the problem. I don't recommend it!

Bike24: We apologize for the inconvenience caused by the product. If it was purchased at Bike24, please get in touch with our customer support. The Bike24 service team is your partner on the way to a satisfying and lasting solution.

Anonymous Feb. 26th 2020

Guter Trainer, für Hobbyfahrer vollkommen ausreichend. Leider gibt es eine Zeitverzögerung bei der Steuerung des Tax durch Zwift, ca. 2sek. Bin ca. 800 km mit 9000 Hm gefahren und hatte keine technischen Probleme.
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