Hi, I have purchased a Tacx Vortex Smart recently and I am riding it with Zwift. I have done it a few times now but I don’t trust the power I am pushing in Zwift.
In addition to the Vortex Smart trainer I also purchased a Tacx Trainer tire and have that on my wheel when I am training. Also, I have calibrated the trainer using the Taxc Utility. So I think it is set up well.
However when I start riding my power level (watt) rarely goes beyond 150W. which seems low to me. I would say I am a recreational ride but I usually ride between 200 and 250W on an hour long ride. However, in Zwift I don’t get there at all.
So when I am doing 80 revolutions per minute (measured using my Garmin ANt+ sensor) on the trainer, and considering the power I am pushing I would estimate I would go around 35 kmh if I were riding outside. That would probably equal somewhere around 220W. However in Zwift I am not near that at all.
How is that possible? What may be causing it. I am also not sure whether my smart trainer is actually varying the resistance of the roller depending on the segment I am riding in Zwift. I don’t always feel a change in resistance on an incline for example. As a result my speed drops significantly to less than 10 kmh when I hit a 5% incline. I think this is because of my low power level even though I am giving it a good effort that would definitely give me more kmh outside.
It is kind of disappointing as I am giving it a good work out but I am not seeing it in the power level I am producing. What could be the reason.
Can it be related to the ANT+ connection? Maybe the signal isn’t strong? Why isn’t the Vortex Smart trainer varying the resistance?
Thank you for your help!