Urgent help : smart trainer and zwift

noste500

I’m buying a Tacx Vortex today . To use Zwift
Do I need a ant dongle for my existing speed sensor ? Or does the vortex send speed info to the software ?

Do I need cadence sending to the software ?
If so , why ??

Thanks . I’d like to sort it out today .
Cheers

bigmitch41

If its a smart trainer then no, the trainer should transmit speed/cadence & power via ant+ or Bluetooth. You may need an Ant+ dongle if using a laptop etc.

Edit: try the Bluetooth first maybe no need for the Ant+ dongle.

noste500

My Cadence sensor isn’t Bluetooth , so I don’t see how the trainer can detect cadence !?
Cheers

stevie63

noste500 wrote:

My Cadence sensor isn’t Bluetooth , so I don’t see how the trainer can detect cadence !?
Cheers

I can confirm that the Vortex does transmit cadence but it estimates it from the way you apply power so sometimes the numbers can be a bit wonky, it also doesn't recognise very low (ie 50) or very high cadences so will give an incorrect number for those

chris_bass

why not check their website?

https://tacx.com/product/vortex-smart/


data output and control


Wireless communication
ANT+ FE-C , Bluetooth Smart open

Control by
Smartphone, tablet, ANT+ FE-C bike computers and stand-alone. Connect to computer via ANT+ antenna

Output
Speed , Cadence , Power

Read out on
Smartphone, tablet, bike computer, sports watch, computer with ANT+ antenna

Accuracy
<5%

noste500

Thanks all