Drivo Non-constant resistance on a flat course

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j_heade
Posts: 3
Joined: Tue Jun 12, 2018 10:51 pm

Drivo Non-constant resistance on a flat course

Postby j_heade » Thu Feb 28, 2019 9:51 pm

I have had my Drivo for over a year. I notice that when I ride the training sessions in REAL that have no gradient, that I can feel various levels of resistance throughout the workout session. This should not be happening as there is no technical input that would require an increase or decrease in resistance on a flat course. I'd like to see this corrected with a firmware update. It may be accurate in power readings, but it is not responding the same as real bike would. It needs an immediate fix.

I think this video explains what the issue is:
https://www.youtube.com/watch?v=mmYt4u_3JYM&t=5s

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Elite Admin S
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Joined: Tue Nov 08, 2016 10:18 am

Re: Drivo Non-constant resistance on a flat course

Postby Elite Admin S » Tue Mar 12, 2019 1:02 pm

Well, on a flat course power is not always the same (and so resistance). Also, you have to consider your weight.

Examples.

Mario is a 70kg rider.
He's pedaling at 20 km/h on a flat.
On a flat, he would develop around 60W.
The trainer minimum resistance at 20km/h is around 65W. So, resistance will be stable at 0.

Then, he acelerate and pedal at 30km/h.
On a real flat, he would develop around 174W.
At this speed on Drivo with resistance 0, the trainer develops around 120W. Too little. The trainer has to increase resistance to match the power


As you can see, a flat road doesn't mean 0 resistance ;)


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