ERG mode not working? Watts reading appears way off?

Bugs and Issues
1

Hi there,

I tried to jump on to Trainer Day for my first session today, having previously used Zwift.

I have a Wahoo Kickr Snap V2, Favero Assioma Uno power pedals, using the Android app and am syncing workouts through Training Peaks.

On the first ride I started my warmup, pedalling quite firmly but the reading only showed about 50 watts. I know from Zwift and from outside riding that this was off. Then, I noticed that under Power Match, the reading looked more accurate (screenshot below is of me at ‘121 watts’ according to Trainer Day, then +116w at 235w in the Power Match section).

ERG mode was also definitely not working as my wattage was not even close to steady.

It felt like I was pedaling through concrete just to keep the wattage at a decent rate. This was just the warmup so didn’t bother going any further.

The question is, what am I doing wrong? Really hoping to use this as much as possible in the next few days so a quick fix would be welcomed!

Cheers

ERG example
ERG example1280×576 63.6 KB

2

So, turns out the issue was entirely me, as suspected.

I turned Power Match off and added ‘double single side power’ in the settings and bang. I was away.

I can’t figure out how to mark as resolved…

3

Thanks for letting us know. Glad it is working for you :slight_smile:

4

FYI: there are multiple ways to handle this. When connected with ANT+, there is no problem. Single or double, ANT+ handles all that. But BLE connection has no standard way of doing this. You could change the setting in your Assioma app to send double single sided, it will only do it on the BLE channel. Or you can do it in the TrainerDay app.
There are cycling apps that don’t have the setting and then you can only correct by setting it in the Assioma app.
So it’s up to you to decide where you correct for it.

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5

Hi @MedTechCD are you referring to ERG mode?

I did notice that even with ERG mode selected my wattage did vary a lot (up to 20 above & 20 below) while I was riding a 30min interval.

Should it remain steady? I know on Zwift it takes a large variation in power to lift the wattage when in ERG mode

6

No, I mean the ´double single side power´ setting

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7

We also have a slider called power smoothing that will reduce the amount of up and down you see. Generally power is a very up and down activity and pedals show this a lot.

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8

Thanks Alex! I don’t actually mind that it doesn’t hold a specific number as it mimics the real world where I need to get better at being smoother.

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9

Today, I have had the opposite problem. In ERG mode, target was 85W, actual was 120W (but it felt like much more).

10

I need to create a standard response for this :slight_smile: If it normally works fine it sounds like some kind of interference from other app, device or wireless signal. If it still does it next time first restart you phone, make sure not garmin, zwift or anything else is open. If that does not fix it then re-install our app can fix some strange random issues at times.

11

Thanks. I quit out of the other app Tacx and rebooted the trainer. Rebooting the phone will be my next port of call.

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