Since I started using zwift. The speed difference from what I am really putting out and what zwift sees is very very different. I use a garmin to monitor my true speed and use a computrainer for my training. I have let my computrainer calculate my speed and I have also used a speed sensor (wahoo)con…

there’s no solution in this thread.

The energy argument does not make sense, Kenitic energy= 1/2(m)(v^2) and Power = E/t so the power must be dependent on the speed and mass of the wheel.

Hi @Jorge_Quinones Welcome to the forum. [image] Jorge_Quinones: I just started and I have the same problem. What problem are you having?

I believe that the problem has already been stated and as it stands for me the software is useless and not worth the subscription price. I’d much rather watch YouTube videos of cyclists. There is no purpose to the software if we can’t compare our speeds to other users. If the speeds can’t be fairly …

[image] Jorge_Quinones: There is no purpose to the software if we can’t compare our speeds to other users I don’t understand, Zwift speed compare fairly well to speed outside on similar terrain.

And that is the problem. I’m sure your software developers don’t understand either.

Can you give us an example. If you use the formulas that I quoted above you can calculate whet your speed in real live would be and compare it to zwift and it is almost identical.

Jorge what are you using for a trainer and sensors? Zwift isn’t magic, it’s output will only be as good as the input you give it.

@Michael_G7 and @Jorge_Quinones If you read the above people on the forum were very patient and tried to explain that just like in real life if you ride up a hill you go slower than riding on the flat at the same effort. Zwift has hills. Hills slow you down. Downhill speeds you up for the same eff…

Very large speed difference from trainer and zwift

Bugs and Support

Paul_Allen (Paul) June 1, 2020, 7:12pm 35

OK, this needs to be posted again: How Does Zwift Determine My Speed?

Please read it.

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Very large speed difference from trainer and zwift

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