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TACX NEO 2 pairing: wrong speed

After pairing my TACX NEO 2 as a Bike Speed or Cadence Sensor, I can see different speed numbers comparing with the data provided from the TACX application.

Please bear in mind that the TACX application is running on an iPad.

Do I have to enter a specific value for "Wheel Size and Circumference" ?

Please advise!

Top Replies

Garmin-Blake over 6 years ago +0 verified

If you are using a sensor on your rear wheel and then compare that to the speed provided from the Neo 2, these will likely vary due to Virtual Speed.

Please reference the link below for a more detailed…

All Replies

0 mcalista over 6 years ago

The 935 does not include the Fitness Equipment Control (FE-C) or FTMS (the equivalent for bluetooth) protocols, so it doesn't pick up the speed information in the indoor trainer datastream.

0 triwolf3 over 6 years ago

I do have kind of the same setup. Tacx Neo 1 is connected to Zwift via Apple TV. In addition the Neo's Power Meter, Cadence and Speed Sensor are connected to my 935. The Speed and Distance displayed on the 935 never match exactly with Zwift but i got close in all terrains by setting a wheel circumference of 2620 mm in the 935 for the Neo Speed sensor.

Precise values to not matter too much to me, i am just recording with the 935 in parallel because of the training load tracking.

0 Garmin-Blake over 6 years ago

If you are using a sensor on your rear wheel and then compare that to the speed provided from the Neo 2, these will likely vary due to Virtual Speed.

Please reference the link below for a more detailed explanation of Virtual Speed.

https://support.garmin.com/en-US/?faq=M0wRO9OkFb9PrFlWgNfJn9&productID=690886&searchQuery=speed&tab=topics