Tacx Flow - Recent Threads

Supporto bici da corsa rulli

1504432 — Thu, 14 May 2026 14:56:16 GMT

Buongiorno,

Vorrei vendere le mie 2 ruote della bici da corsa ma mi dispiace venderne solo 1 per tenere l'anteriore sui rulli. Posso sostituire la ruota anteriore con un supporto che mi faccia stare la bici in orizzontale?

Grazie

CLimbPro eta is way out

7923149 — Mon, 04 May 2026 03:59:39 GMT

Climbpro used to give an accurate view of timeto completion. Accurate in the sense it used current power numbers to calculate remaining time required at that power. For last 9 months or so it has been way out, always under estimating time to complete the climb

eg cant paste the file, doing Luz Adiden climb, at lowwatts, 300+ m climb remaining, eta of 3 minutes

Tacs training app became extremely slow

AlonGluska100 — Thu, 09 Apr 2026 03:29:12 GMT

In the last 2 months it takes the app 10-20 minutes to start. Every step is extremely slow.

Any idea?

Tacx premium payment getting declined

2736061 — Fri, 23 Jan 2026 05:39:16 GMT

Every time subscribe to tacx premium subscription my card getting declined when I was contacted to Bank they r saying that is merchant declined please slove my problem

TacX workouts in Training Peaks on Strava

VickiWDixon — Sun, 04 Jan 2026 23:34:05 GMT

How can I connect my TacX workouts in Training Peaks Virtual, which I do on my Windows 11 laptop, to Garmin Express or Strava? I want records of my indoor rides on Strava.

Tacx Training Desktop App keeps shutting down after showing main window for 5 seconds

9134166 — Tue, 16 Dec 2025 08:21:28 GMT

Shortly after starting the desktop app it keeps closing on me as if scripted after connecting to a profile server or something like that. Tried about everything to resolve this; repair app, reset app, reinstall app, disable Windows Defender etc etc.

Never has done this before for the last so many years.

Started after December 15 20205.

forums.garmin.com/.../DESKTOP_2D00_F2958KL_5F00_mnS7oAoPbJ.mp4

How do I find my favourites and downloads in the TacX Desktop App?

1881082 — Mon, 20 Oct 2025 17:40:35 GMT

I used to be able to apply a filter on the Movies tab to show just favourites or downloads. But after a summer away that option has disappeared!

Compatibility of Giant Revolt 2 and Garmin Tacx Boost Trainer

5239665 — Tue, 07 Oct 2025 11:53:28 GMT

Can anyone tell me if the Giant Revolt 2 (2025) and Garmin Tacx Boost trainer are compatible? As far as I can tell the limiting factor is the need to a purchase a T1710 E-Thru trainer axle M12x1.5, with medium thread - suitable for hubs with axle skewer attachment 142 × 12. I really don't want to spend a bunch of money on a trainer and the Garmin Tacx Boost is currently on sale for $170 so it looked promising. Can you give me any reasons why I shouldn't buy it even if it is compatible?

Difference between Smart Watch Venu 3S and Indoor Trainer Smart Flow

Nguruh — Tue, 07 Oct 2025 09:40:22 GMT

Hello

I have a Venu 3S and a Tacx Smart Flow indoor Cycling trainer. I started a free training session with Tacx and started indoor cycling on the Venu 3S (which is also connected to the Smart Flow via Bluetooth).

However, I have now noticed some significant discrepancies:

Venu 3S:
1 hour of training
25.2 km/h average speed
25.17 km distance
135 watts average power

TacX App
1 hour 1 min of training (I started 1 min later on the watch)
28.9 km/h average speed
29.54 km distance
134 watts average power

Which data is more accurate? Why are there such large differences with these devices? I assume the Smart Flow Bluetooth sensor should actually send the same data to the watch and the TacX app?

I now also have two indoor training sessions on the Connect app—I assume I can't synchronize these?

Thank you for your help.

Flow smart trainer thru axle confusion

Spurny — Wed, 24 Sep 2025 12:44:27 GMT

Hello,

I have a Orbea Avant H60 bike and I have also bought a Tacx Flow Smart trainer. Now I'm a little confused about axle compatibility. My bike has double-lead thread pitch so the original Tacx are not compatible (for example the T1711 model that was the closest but it has single lead thread pitch).

I have found original Orbea trainer axle (X056; www.orbea.com/.../x056ttcc) and also Robert Axle Project Trainer Thru Axle - TRA224 (www.bike24.com/p2595128.html). Orbea cannot guarantee the compatibility of their trainer axle and recommended that I contact Tacx. So my question would be if anymore can confirm that for example the Orbea's axle length 183mm would be suitable for Flow Smart Trainer? Robert Axle has a length of 165mm but I'm not sure if it's double-lead type (at least it seems to be). Also not sure if the caps of both (Orbea and Robert) are compatible with Flow Smart.

Bike's axle info spec is following 12x142mm (Thru axle); 12x165mm in total length; Double thread 2P1.0; thread length 15mm.

Thanks in advance!

Advice on indoor trainer tyre 700x25c

9760522 — Sun, 10 Aug 2025 00:51:20 GMT

Hi,

I have a TACX FLOWSMART Indoor trainer with Giant crossroads bike with 700x25c tyres.

I'm based in Australia & am seeking the proper trainer tyres easily available in Australia.

Question :

Will Vittoria ZAFFIRO HOME TRAINER Black 700 x 25C be appropriate for this purpose?

Or, which other 25mm tyres , easily available in Australia, are appropriate for this purpose?

Thanks for your advice,

Akalank

Tyre shreds while exercising on TACX Flowsmart.

9760522 — Sat, 02 Aug 2025 03:40:43 GMT

I've brand new Continental Ultra sport tyre on GIANT Cross city bike mounted on TACX Flowsmart trainer. Whenever I exercise, tiny tyre particles come out & spoil the whole floor (mostly back side). This looks like an unusual behaviour. Anyway to prevent this from happenning? I've some pictures that I can post.forums.garmin.com/.../VID_2D00_20250802_2D00_WA0001.mp4 forums.garmin.com/.../VID_2D00_20250802_2D00_WA0002.mp4

Garmin tacx disconnecting frequently and loss of data

5289893 — Fri, 01 Aug 2025 13:01:05 GMT

Dear all,

I have the following setup:

Last version of garmin training on my Huawei p30 pro and last version updated on my Tacx Flow. They are connected with bluetooth.

When I start a race (Col du telegraphe) It started disconnecting a lot (100times) but only during the climb. It says that I need to continue to pedal in order to continue the race.

The disconnecting can last between 1 and 20 seconds. It its quite horrifying.

I tried to manually pause the race and continue but it doesn't change anything

I tried to have the smartphone closer to the tacx flow but it doesnt change a thing

Anyways I did finish that race painfully, at it end I clicked on save and then... the race never saved

I closed the app Garmin tacx and opened it again, the result of the race appeatred on a pop-up, asking if I wanted to save them. I clicked on yes agazin but nothing was saved.

Could you help me please to;

Fix the connection issue

Help me to find back the file

Many thanks for your help.

Kind regards,

Tacx Flux 2 + Quick Release Adapter – Need Correct End Caps

3762887 — Sun, 27 Jul 2025 22:27:24 GMT

Hi everyone,

I’m hoping someone can help me out.

I have a Tacx Flux 2 Smart direct-drive trainer and recently bought the Tacx Quick Release Adapter Set (T2840) to use with my Specialized Allez Sport 2021 (135 mm quick release).

The problem: the end caps currently on my trainer seem too large (looks like they’re for thru-axles), so my bike won’t seat properly.

From what I’ve found online, I think I need the Quick Release-specific block caps (part number S0053 / Garmin 117‑01575‑02) to replace the current thru-axle caps.

What I’ve tried so far:

Checked the Tacx documentation and parts list for the Flux 2
Reached out to a local bike shop (they weren’t sure)
Looked on Garmin’s site and some retailers, but couldn’t find these caps listed for sale

My questions:

Can anyone confirm that part number S0053 / 117‑01575‑02 is the correct end cap set for this setup?
Does anyone know if these can be purchased directly from Garmin, or is there a recommended source?

Any help would be hugely appreciated!

Training app crashes when trying to import gps

djcozzer — Sun, 15 Jun 2025 07:50:46 GMT

trying to import gps files into the tacx windows app. previously uploaded with no problems, but now crashes by trying to relog itself back in followed by an unresponsive white screen. tried reinstalling the app but still the same. Any insight welcome :-)

Colin

Tacx Genius T2080 does not connect via ant+ with Windows Tacx Training Desktop App

tobbes_ — Thu, 05 Jun 2025 10:35:15 GMT

Hi,

I try to connect the T2080 with Windows via ant+ to do my rides.

Unfortunatelly the device do not show up. A tacx Vortex T2180 can be linked (and used) with the desktop app.

A connection and calibration with the android tacx app is possible. The device is up to date says the app.

I restarted the PC an the T2080 several times with no luck. Is it possible to link the T2080 per ant+ (its more stable then BLE in my use case)?

Thanks for tipps

Tobbes

Tacx Training Desktop App pairing

SwimSim — Tue, 18 Feb 2025 18:37:05 GMT

I have just downloaded Tacx Training Desktop App and made login but bluetooth icon is greyed out. I think the application does not detect it even if it is enabled (I have integrated bluetooth in my laptop).

I don't have an ANT+ dongle.

Which kind of bluetotooth does it support? In case I need to buy additional hardware what do you suggest? Bluetooth or ANT+ dongle?

I saw that there is an ANT+ antenna on the Garmin store https://www.garmin.com/it-IT/p/690897/pn/T2028/ but

Are there compatible ANT+ dongles?

Trainer use and tires

SwimSim — Tue, 11 Feb 2025 05:47:31 GMT

I could not find any indication in the manual.

After every use is it a good practice to release the tyre lock or I can keep it in position?

The only thing that comes to mind is that the tire gets damaged under continuous load.

I found that I would be better to use a tyre specific for the trainer.

Have you any suggestion? Currebtly I have a Continental Ultra Sport 700 X 25

I saw there is the Continental Home trainer 700 X 23 or 700 X 32.

Is it possible to measure the lactate threshold with an indoor trainer like the Tacx vortex?

tobbes_ — Mon, 10 Feb 2025 21:04:43 GMT

Is it possible to measure the lactate threshold with an indoor trainer like the Tacx vortex in combination with a fenix 6? Or do I need a heart rate strap for this? Or is it not possible in general?

How to calibrate the Tacx Vortes with the windows desktop app

tobbes_ — Fri, 07 Feb 2025 11:55:26 GMT

Hi,

I am using the windows desktop app of tacx trainer because the connectivity with ant+ is much better then with bluetooth.

I cannot find a methode to calibrate the trainer with the desktop app. Is there a way to do this?

Would it be a workaraound to do the calibration with the iPad app and do the ride with the desktop setup afterwards?

Is the calibration charred with the desktop app or is only used internally in the iPad app?

Thanks - tobbes_

MacBook Air 2017 Monterey ANT+ USB does not show up

tobbes_ — Wed, 05 Feb 2025 12:33:17 GMT

Hi,

I try to use my MacBookAir 2017 with Monterey and a Garmin ANT+ device to connect my tacx Vortex and fenix 6.

Want to use it with the tacx trainer app on the MacBook.

Unfortunately the ant+ device does not show up in the app. Also Garmin express does not connect to the fenix 6.

In tacx trainer only bluetooth is available, but I want to use ant+ because it seems to be more stable.

Booted with ant+ plugged in and tried to remove and plug in again - without succes. Garmin express told "ant+ receiver recognized but no device found".

How to setup my devices with ant+ in tacx trainer?

Using Tacx app with Garmin sensors and manual resistance trainer

Hogie’s Brauhaus — Tue, 04 Feb 2025 10:54:38 GMT

Hi there. I'll start by saying that I am a runner and have been trying out some indoor cycling cross-training due to weather and/or injuries. So I am looking to fine tune my setup for casual/infrequent use but also am very data driven with my training. And please excuse me if I get the terminology wrong with this stuff too!

For equipment, I have a road bike on a generic trainer with a manual resistance control. I also have the Garmin Speed 2 and Cadence sensors along with a Venu 3 watch and a Polar HC10 heart rate strap.

With that, I was able to follow along with a couple of cadence-based workouts on YouTube while using the Bike Indoor activity on my watch. But looking at the watch is a bit annoying so a dedicated display on my phone would be handy.

I tried installing the Tacx Training app onto my phone and with the sensors in Bluetooth mode, I have them paired and connected in the app. I told the app that I have the basic Tacx Boost trainer even though it's another generic brand of trainer with manual resistance control. Then I also connected the heartrate monitor to the Tacx app. If I chose the Power Workout, then I get a basic display that shows Power (estimated/calculated), Speed, RPM (Cadence), and HR. When I stop recording, I can save the workout to my Garmin Connect account.

That worked ok for a bit but now for some reason the speed/power don't work on the iPhone app anymore. I have no idea why and it's very frustrating. So I tried the macOS app on my Macbook, paired all the sensors, and that works instead. It's more inconvenient to have to use the laptop though.

Any idea why the Speed sensor works on the laptop and not the iPhone app?

If Tacx isn't the right app for me, I'm open to other suggestions too! I want a basic app that can show Power (estimated/calculated), Speed, RPM (Cadence), and HR. I myself don't care about the virtual rides/races. I just follow cadence-based workout videos on YouTube and try to match power/effort targets.Ideally the same app could be used for riding outdoors and it would also record GPS data and have a calculate power metric.

TACX flow smart trainer not calibrating and disconnecting during ride

adolphe — Sun, 02 Feb 2025 18:52:54 GMT

Problem: I can't get the trainer to calibrate and when using the Tacx Training app on my phone, the trainer disconnects after a few minutes into the workout and won't reconnect automatically. The workout thinks I have stopped pedalling.

Setup: I have my trainer paired to my Android (Samsung S23FE) via BLE. I also have it setup as a sensor on my Forerunner 965 via ANT+.

Calibration problem detail: I have had my trainer about 6 weeks. I was able to calibrate during the first two weeks. Then suddenly this started happening where it would say I need to calibrate, I would start the calibration, spin up to 30km/h, and let it coast down. It would sit at 0.0 km/h and never evaluate the calibration. I few weeks later, the trainer started disconnecting from the Tacx Training app on my phone a few minutes after starting a ride. I also have it paired with my watch via and ANT+ and it seems to work fine starting workouts through my phone. I bought an ANT+ dongle for my PC and I can connect there, but for some silly reason the Desktop app doesn't allow you to calibrate.

I have tried calibrating with different tire pressures and played extensively with different tightness settings on the trainer. I have tried two different phones and a tablet all with the same results.

Frequent flat tires

2791863 — Tue, 14 Jan 2025 22:10:30 GMT

I’m using the Tacx trainer tire. 700x23 inner tube. Inflating to 110 psi. Inner tube punctures are from a single, tiny pinhole puncture, but are in varying locations, and ALWAYS on the outer surface of the tube (ie, not a spoke/rim tape issue). I apply small amount of talc powder to surface of inner tube and inner surface of tire. I’ve even replaced the Tacx trainer tire. I’ve used both regular inner tubes as well as thicker “puncture resistant” inner tubes. I fully deflate the inner tube after each session. Typically get a flat after 300-400 miles. More likely to occur after “steeper” rides (ie, greater resistance). Not temperature related, as the flats occur in cooler weather (50-60 degrees) as well as warmer weather (70-80 degrees). I do all sessions with trainer well calibrated.

Very frustrating!!!

Any thoughts?

Thanks!!

Red green flashing tacx flow

5142111 — Tue, 14 Jan 2025 16:24:48 GMT

Flashing red green leds all pcb is ok. Can't find trainer on app to add through bluetooth. (Bought second hand and was trying to connect first time)

Any suggestions?