Polar Vantage M wrong Indoor Cycling Speed/Distance (Misuro B+)

[kacnje]

The winter is coming and today I tried to connect Polar Vantage M with Misuro B+ (ANT+ sensor on Elite). After the sensor was connected to Vantage M, the watch asked me for Wheel size and Crank length.
For wheel size, I entered 2080 mm as it was suggested in tables for wheel 700x25c.
But - after I tried recording a session, I was shocked. The speed and distance were way out. For example, the speed from 120-190 km/h for shown
At first, I thought that Misuro B+ doesn't work well. I replaced the battery, and tried in Android app (Elite Mytraining). The speed and distance looked (quite?) ok.

Any idea what can be wrong?