Hi guys
A little resume.
The Direto belt at the beginning has a tendency to loose a little. This is its way to adapt to the mechanic of the trainer and it's absolutely normal.
The calibration procedure "measures" how much the belt has loosened to adjust the power reading.
So, it's normal to have a decrease of the offset value, but this will correct the power reading as well.
But it may happen that the value decreases too much.
In this case, usually appears also some issue (noise, slipping at high power, sudden drop in power).
In these cases, it's necessary to tighten the belt.
To do it, we always prefer if you contact us. We will give you detailed instructions to not damage the belt and also check the result to be sure that all is ok. So, be patient and contact us at
myetraining@elite-it.comThat said, there are also cases in which the offset continues to decrease. This may mean that the belt is ripping off, for example.
So, it's really important to contact us in these cases. We'll give you instructions on how to check the belt status and how to replace it, if necessary.
Finally, another possible problem is that power is not correct even if the offset is ok.
These cases are quite rare, but we had some. Again, the solution is to contact us to check if the power sensor is working properly.
Now, one additional (but important) note.
If the difference between Direto power and your power sensor is little, the cause may be another one.
Direto measures power on the hub, while most of the power sensors measure it on the crank.
This adds some frictions (and so, some power watts). In some cases this may add a difference up to a 5% (but usually less!).
If you do a research on the net, you'll find many articles about this
But don't hesitate to contact us anyway to check!
That's all folks!