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Tacx Flux Smart Trainer (Updated 2018 Version) Max 1500 Watts, 10% Slope, ANT+, Bluetooth, Magnetic, Shimano/Sram Freehub Body, Model T2900

3.9 3.9 out of 5 stars 64 ratings

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Brand Tacx
Wheel Size 29 Inches
Bike Type Mountain Bike
Resistance Mechanism Magnetic

About this item

  • Tacx T2900 Flux Training base Real Road MTB Cross
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Product Description

The FLUX is a compact and realistic interactive direct drive and is maintenance-free. The swift response of the Smart electronics and the 7kg flywheel transmit the slightest fluctuations in resistance directly and accurately to your legs. With the FLUX we combined direct drive technology with an electro brake in order to offer an accessible Smart and interactive direct drive. Features: Bike Rear Dropout sizes Race 130mm, MTB 135mm. Adapters for other widths available. Not suitable for a long cage rear derailleur. Suitable bikes SRAM & Campagnolo cassettes Supplied with Quick release for racing bikes and mountain bikes (5 mm) Control by Smartphone, tablet, ANT+ FE-C bike computers and stand-alone Connect to computer via ANT+ antenna Read out on Smartphone, tablet, bike computer, sports watch, computer with ANT+ antenna Specs: Max. power: (40 km/h) 1500 Watt Max. slope: 10% Flywheel: Actual, 7 kg Flywheel effect: 22.8kg Dimensions when folded: Not foldable Weight: 16 kg (35.3 lbs) Wireless communication:ANT+ FE-C, Bluetooth Smart open Read out on Smartphone, tablet, bike computer, sports watch, computer with ANT+ antenna Output: Speed, cadence and power

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Tacx

Tacx Flux Smart Trainer (Updated 2018 Version) Max 1500 Watts, 10% Slope, ANT+, Bluetooth, Magnetic, Shimano/Sram Freehub Body, Model T2900

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Customer reviews

3.9 out of 5 stars
3.9 out of 5
64 global ratings

Customers say

Customers like the value and quality of the bicycle trainer. They mention it's the best value at its price point. However, some customers have reported issues with the smell, noise and belt. They say the belt gets hot and smells like burning rubber. They also say the sound increases a lot. Customers have mixed opinions on performance.

AI-generated from the text of customer reviews

6 customers mention6 positive0 negative

Customers find the bicycle trainer to be a great value at its price point. They also say it's the best value trainer.

"...Flux is an entry level direct drive trainer, and at the price point that I could afford...." Read more

"This is absolutely the best price you are going to find for a direct drive smart trainer...." Read more

"...I find the Tacx Flux to be a great value at its price point for a direct drive trainer...." Read more

"...because after reading the reviews it would be a good product at a great price...." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the bicycle trainer. They mention that it is a great product for the price, and the revised 2018 trainer is awesome.

"...The first ride went great and I was so excited to get to use it before work the next day...." Read more

"...For the price, this trainer is great." Read more

"Don’t let the early reviews scare you, the Flux is a great trainer..." Read more

"The revised 2018 trainer is awesome!..." Read more

13 customers mention4 positive9 negative

Customers have mixed opinions about the performance of the bicycle trainer. Some mention that it works well, while others say that it fails within a month.

"...sounding funny, the next day burning smell from the belt and it stopped working - Shame on Tacx for bringing this to market!..." Read more

"...I got wasn't quite correct, it arrived in perfect shape and operates without any issues at all...." Read more

"This thing no longer works properly only after a few days. Dont buy it!!!!It makes me not want to work out...." Read more

"...Your purchase will not be the exception - this is clearly a faulty product." Read more

7 customers mention0 positive7 negative

Customers are dissatisfied with the smell of the bicycle trainer. They mention that it smells like burning rubber after an hour of easy use, and that the belt gets hot at times.

"...Then I began to notice the same burnt rubber/plastic smell mentioned in other reviews and the resistance became very irregular, almost like it was..." Read more

"...You can smell the belt getting hot at times but I havent felt any drop in resistance...." Read more

"...My happiness ended when I smelled burning rubber and experienced slippage at the end of the ride...." Read more

"...Eventually the belt just started to randomly slip and the burnt rubber smell showed up in force...." Read more

6 customers mention0 positive6 negative

Customers are dissatisfied with the noise produced by the bicycle trainer. They mention that the cassette slid right on but generates a grinding noise under any sort of tension. Some customers also mention that it starts sounding funny and the sound increases a lot after 10 minutes.

"...After about 10 minutes of the next ride I heard a funny noise and it felt like the belt was slipping...." Read more

"...The sound increased a lot,after 10 minutes. 3) After one hour the sound in the shaft of the cassete is like a "pop corn" machine...." Read more

"...Once here, the cassette slid right on but generates a grinding noise under any sort of tension...." Read more

"...One day it started sounding funny, the next day burning smell from the belt and it stopped working - Shame on Tacx for bringing this to market!..." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the belt of the bicycle trainer. They mention that it slips and smells like burnt rubber.

"...10 minutes of the next ride I heard a funny noise and it felt like the belt was slipping...." Read more

"...My happiness ended when I smelled burning rubber and experienced slippage at the end of the ride...." Read more

"...Eventually the belt just started to randomly slip and the burnt rubber smell showed up in force...." Read more

"...During my third ride the brake started slipping, then I smelled burning rubber, then the brake started locking...." Read more

Don’t let the early reviews scare you, the Flux is a great trainer
5 Stars
Don’t let the early reviews scare you, the Flux is a great trainer
Perfect, just what my research indicated it would be. I’d seen all the reviews talking about the early failures, but rather than scaring me away I dug a little deeper. For the most part the failures were in the first batch leaving the factory and from what I could tell TACX was addressing the problem. I took that to be a good sign, TACX wasn’t abandoning the product.I watched Shane Millers and DC Rainmakers YouTube reviews and again they didn’t discourage me. Again, TACX could be seen as addressing the problem.The Flux is an entry level direct drive trainer, and at the price point that I could afford. The local shops all seemed to have the Cycleops trainers which didn’t excite me. I’m not sure why but I didn’t feel good about them, the price point was just out of reach for me as well.The setup was easy, unbox, slide the legs on and bolt them in place. The hardest part was putting the cassette on, but only because I used the 12T connector instead of the 11T one. Both came with the Flux.I’d reached out to the seller prior to placing the order and had received an immediate answer. Another good sign as far as I was concerned.My first ride with the Flux on Zwift told me I’d made a good decision. The first hill, I saw it coming and just like real life as I moved into attack position the resistance went up and I started the climb. I find I love attacking the rollers around the city in Zwift and have climbed Leath hill 3 times in the last two days. One of my goals this winter was to get better at climbing hills, this trainer is going to make that goal a lot easier to achieve.I’d definitely recommend the Flux to other cyclists, and already have. I took it with me to the studio at the request of the guys I ride with. They all liked what they saw.
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Top reviews from the United States

Walsh
5.0 out of 5 stars Don’t let the early reviews scare you, the Flux is a great trainer
Reviewed in the United States on February 6, 2018
Verified Purchase
Perfect, just what my research indicated it would be. I’d seen all the reviews talking about the early failures, but rather than scaring me away I dug a little deeper. For the most part the failures were in the first batch leaving the factory and from what I could tell TACX was addressing the problem. I took that to be a good sign, TACX wasn’t abandoning the product.

I watched Shane Millers and DC Rainmakers YouTube reviews and again they didn’t discourage me. Again, TACX could be seen as addressing the problem.

The Flux is an entry level direct drive trainer, and at the price point that I could afford. The local shops all seemed to have the Cycleops trainers which didn’t excite me. I’m not sure why but I didn’t feel good about them, the price point was just out of reach for me as well.

The setup was easy, unbox, slide the legs on and bolt them in place. The hardest part was putting the cassette on, but only because I used the 12T connector instead of the 11T one. Both came with the Flux.

I’d reached out to the seller prior to placing the order and had received an immediate answer. Another good sign as far as I was concerned.

My first ride with the Flux on Zwift told me I’d made a good decision. The first hill, I saw it coming and just like real life as I moved into attack position the resistance went up and I started the climb. I find I love attacking the rollers around the city in Zwift and have climbed Leath hill 3 times in the last two days. One of my goals this winter was to get better at climbing hills, this trainer is going to make that goal a lot easier to achieve.

I’d definitely recommend the Flux to other cyclists, and already have. I took it with me to the studio at the request of the guys I ride with. They all liked what they saw.
Customer image
Walsh
5.0 out of 5 stars Don’t let the early reviews scare you, the Flux is a great trainer
Reviewed in the United States on February 6, 2018
Perfect, just what my research indicated it would be. I’d seen all the reviews talking about the early failures, but rather than scaring me away I dug a little deeper. For the most part the failures were in the first batch leaving the factory and from what I could tell TACX was addressing the problem. I took that to be a good sign, TACX wasn’t abandoning the product.

I watched Shane Millers and DC Rainmakers YouTube reviews and again they didn’t discourage me. Again, TACX could be seen as addressing the problem.

The Flux is an entry level direct drive trainer, and at the price point that I could afford. The local shops all seemed to have the Cycleops trainers which didn’t excite me. I’m not sure why but I didn’t feel good about them, the price point was just out of reach for me as well.

The setup was easy, unbox, slide the legs on and bolt them in place. The hardest part was putting the cassette on, but only because I used the 12T connector instead of the 11T one. Both came with the Flux.

I’d reached out to the seller prior to placing the order and had received an immediate answer. Another good sign as far as I was concerned.

My first ride with the Flux on Zwift told me I’d made a good decision. The first hill, I saw it coming and just like real life as I moved into attack position the resistance went up and I started the climb. I find I love attacking the rollers around the city in Zwift and have climbed Leath hill 3 times in the last two days. One of my goals this winter was to get better at climbing hills, this trainer is going to make that goal a lot easier to achieve.

I’d definitely recommend the Flux to other cyclists, and already have. I took it with me to the studio at the request of the guys I ride with. They all liked what they saw.
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26 people found this helpful
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fernandez
5.0 out of 5 stars Best price you will get for a quality direct drive trainer
Reviewed in the United States on January 12, 2019
Verified Purchase
This is absolutely the best price you are going to find for a direct drive smart trainer. If you are on the fence between this and a wheel-on, DEFINITELY GO WITH DIRECT DRIVE :) The usability and riding experience on this trainer is far superior, and at a price of a good wheel-on.

Received a 2017 model but the seller was very quick to resolve the issue. After speaking to them as well as Tacx, I am assured that all of the units this seller is offering were produced after the manufacturing issue that plagued this model in early 2017. Even though the model I got wasn't quite correct, it arrived in perfect shape and operates without any issues at all.

As another person has mentioned in a review, you can safely ignore the older reviews around faulty units -- the ones this seller is offering are totally fine.
4 people found this helpful
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Idaho Aggie
4.0 out of 5 stars Best Value Trainer!
Reviewed in the United States on February 2, 2019
Verified Purchase
I waited 6 weeks and about 1k miles of riding to leave a review as the flux had a rough start and some bad reviews. I picked it up for $600 in early December and began the relationship with the trainer with some pessimism. Based on my experience, all the issues appear to be in the rear view mirror.

I find the Tacx Flux to be a great value at its price point for a direct drive trainer. There is nothing that costs less that will provide the same experience and you will have to spend at least $100 more fore the Elito or $200+ for the Wahoo Core (which appears to be a great trainer).

A little about me first. I’m a masters cat 4 roadie who rides over 5k miles/year of which 2k/year is inside (life in the north). FTP is 3.5w/kg with peak sprint at just under 1,200 watts.

As for the experience... I have a stages left side crank for my power to compare. The Tacx Flux reads power on the low slide for your initial push, or when sprinting as it is calculated versus measured (Stages is an actual strain gauge). When working in steady state efforts, like Zwift, it works really well. I really find the ERG mode to be helpful, most of the time. On longer VO2 Max or FTP efforts, I do find the ERG makes it more difficult, so I turn it off. I also revert back to the Stages if my legs are tired and I need to complete a difficult workout. It’s kind of like cheating. I can tell my legs have gotten stronger over the last six months and I’m looking forward to a higher FTP as a result.

Connecting the Flux to my iPad and Zwift is really easy. I think the flux runs super quiet. The fans and shifting are the only real noises. Coming from a Kurt kinetic rock and roll, I do miss the side to side movements. I hope this review helps. It’s my first on amazon.
19 people found this helpful
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C Morgan
1.0 out of 5 stars Belt slipped, smells like burnt rubber and not usable after 2 rides
Reviewed in the United States on January 13, 2017
Verified Purchase
I bought this because after reading the reviews it would be a good product at a great price. I should have paid more attention to the reviews that mentioned the belt slipping. The first ride went great and I was so excited to get to use it before work the next day. After about 10 minutes of the next ride I heard a funny noise and it felt like the belt was slipping. Then I began to notice the same burnt rubber/plastic smell mentioned in other reviews and the resistance became very irregular, almost like it was rubbing on something internally. So I too am returning this. Thanks Amazon for making the process easy!
27 people found this helpful
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Mach 1
5.0 out of 5 stars The Flux Smart Trainer was my first smart trainer purchase
Reviewed in the United States on January 30, 2017
Verified Purchase
The Flux Smart Trainer was my first smart trainer purchase. This is no small spend by any means, but having a quiet trainer that I can ride early in the morning or late at night and not wake up the family is key. It connects right away with Zwift. I am now riding more and longer thanks to this smart technology. I have logged more winter miles and hours this winter than I have ever and it is because of this new tech. If you are looking to get into the direct drive smart trainer market this is the one for you.
5 people found this helpful
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NandoV
2.0 out of 5 stars The trainner is out of USA. To send it back it's very expensive for me.
Reviewed in the United States on May 9, 2019
Verified Purchase
The device works very well from November 2018 to February 2019. Problems: 1) The trainner lost the power or brake by 1 to 2 seconds. 2) The sound increased a lot,after 10 minutes. 3) After one hour the sound in the shaft of the cassete is like a "pop corn" machine. It's possible to have detailed instructions for the maintenance? It doesn't atached nothing.
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Michael
5.0 out of 5 stars Great Value Trainer
Reviewed in the United States on May 14, 2020
Verified Purchase
Ridden 1000 miles on this thing. Experienced some squeaking about 800miles in, opened it up, sprayed it with some belt lube and it has been quiet ever since. For the price, this trainer is great.
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Top reviews from other countries

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julie Meeks
5.0 out of 5 stars Bought at a discounted price.
Reviewed in the United Kingdom on December 7, 2018
Verified Purchase
Brilliant at agreat price. New generation is available.
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Axel
1.0 out of 5 stars Noisy
Reviewed in Spain on November 26, 2018
Verified Purchase
No vale para la mountain-bike y hace ruido
3 people found this helpful
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Julien D.
5.0 out of 5 stars Parfait pour Zwift
Reviewed in France on March 25, 2018
Verified Purchase
Un peu lourd (~16Kg) et pas très pratique à déplacer, mais pour le reste c'est parfait : connexion ANT+ ou Bluetooth, possibilité de contrôler la résistance automatiquement via une application comme Zwift, ... Ce home-trainer répond parfaitement à mes besoins !
9 people found this helpful
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diego
5.0 out of 5 stars Bello bello bello bello
Reviewed in Italy on January 10, 2018
Verified Purchase
Ora mai è sco su strada per allenarmi sul rullo! Qualcosa di stupendo un me 800km fatti di rullo gli allenamenti e i programmi compatibile allungano la voglia di salire sul rullo e poi tacx è una
Garanzia fare una recensione è quasi sprecato, andate sul sicuro e comprate tacx
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donald68
2.0 out of 5 stars Bis jetzt Top / update 11.2018
Reviewed in Germany on November 7, 2017
Verified Purchase
Erste Bewertung, schauen wir mal eie es weitergeht.
Gestern gekommen, den Fuß mit 2 Schrauben abgeschraubt, die Kassette aufgesetzt und das Rad drauf, hier war es was tricky da sich der Hinterbau immer was versetzt hatte, als dann der Schnellspanner kam war alles OK.

Auf meinem Handy, S7 Edge, die App drauf und die Software nach dem Trainer suchen lassen, kurze Zeit später waren die Geräte via ANT grkoppelt. Meine Garmin Vector Pedale sowie der Pulsgurt wurden auch erkannt.
Über cloud.tacx.com ein Workout aufs Handy und los ging

Bis jetzt Top, jetzt werde ich erst mal testen.

So, nach fast 3 Monaten mal Zusammenfassung,
Als Tablett nutze ich nun das Fire8 mit der TACX Software, brauche da keinen TV oder was großes,der FLUX koppelt sich via Bluetoth mit dem Fire8 sehr gut und stabil. Parallel zum Tablett ist mein Garmin 1000 über ANT+ mit dem Flux auch noch gekoppelt, den Garmin wegen Puls und den Vector Pedalen (Wattmessung an den Pedalen)
TACX hat sein Portal was geändert, man kann nun seine GPX Daten hochladen und abfahren, das macht Spaß
Nach längeren Strecken richt der Trainer immer noch sehr,
Blatt 9+10 kann ich nicht nutzen, warum auch immer, es knackst dann, die Schaltung habe ich eingestellt, Kassette ist neu, die Kette ist so gut wie neu

UPDATE 11.2018
Nachdem TACX anfänglich den Import von eigenen GPX Daten zugelassen hat und dauch das spätere Abfahren der eigenen Strecken darf man nur noch Importieren und wenn man Diese dann Abfahren möchtt wird man mit fast 10€ pro Monat zur Kasse gebeten. Das Gerät ist weiterhin OK, aber dies war für mich auch eine grundlegende Funktion die mich zum kauf dessen führte. Ich werde jetzt dann zu BKool wechseln, OK die kosten auch 10€ im Monat aber da kann man aber auch seine eigenen Tourvideos hochladen und diese dann abfahren, sofern die GPX Daten enthalten. Ich werde TACX aber noch eine bitter böse Mail schreiben und ich hoffe das das alle anderen TACX User auch machen werden.
Customer image
donald68
2.0 out of 5 stars Bis jetzt Top / update 11.2018
Reviewed in Germany on November 7, 2017
Erste Bewertung, schauen wir mal eie es weitergeht.
Gestern gekommen, den Fuß mit 2 Schrauben abgeschraubt, die Kassette aufgesetzt und das Rad drauf, hier war es was tricky da sich der Hinterbau immer was versetzt hatte, als dann der Schnellspanner kam war alles OK.

Auf meinem Handy, S7 Edge, die App drauf und die Software nach dem Trainer suchen lassen, kurze Zeit später waren die Geräte via ANT grkoppelt. Meine Garmin Vector Pedale sowie der Pulsgurt wurden auch erkannt.
Über cloud.tacx.com ein Workout aufs Handy und los ging

Bis jetzt Top, jetzt werde ich erst mal testen.

So, nach fast 3 Monaten mal Zusammenfassung,
Als Tablett nutze ich nun das Fire8 mit der TACX Software, brauche da keinen TV oder was großes,der FLUX koppelt sich via Bluetoth mit dem Fire8 sehr gut und stabil. Parallel zum Tablett ist mein Garmin 1000 über ANT+ mit dem Flux auch noch gekoppelt, den Garmin wegen Puls und den Vector Pedalen (Wattmessung an den Pedalen)
TACX hat sein Portal was geändert, man kann nun seine GPX Daten hochladen und abfahren, das macht Spaß
Nach längeren Strecken richt der Trainer immer noch sehr,
Blatt 9+10 kann ich nicht nutzen, warum auch immer, es knackst dann, die Schaltung habe ich eingestellt, Kassette ist neu, die Kette ist so gut wie neu

UPDATE 11.2018
Nachdem TACX anfänglich den Import von eigenen GPX Daten zugelassen hat und dauch das spätere Abfahren der eigenen Strecken darf man nur noch Importieren und wenn man Diese dann Abfahren möchtt wird man mit fast 10€ pro Monat zur Kasse gebeten. Das Gerät ist weiterhin OK, aber dies war für mich auch eine grundlegende Funktion die mich zum kauf dessen führte. Ich werde jetzt dann zu BKool wechseln, OK die kosten auch 10€ im Monat aber da kann man aber auch seine eigenen Tourvideos hochladen und diese dann abfahren, sofern die GPX Daten enthalten. Ich werde TACX aber noch eine bitter böse Mail schreiben und ich hoffe das das alle anderen TACX User auch machen werden.
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44 people found this helpful
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