I have the Bodytone SMB1 V2.
You may link the “Power Source”, the “Cadence” and the “Controllable” options from Zwift. With these settings:
- In “Free Ride” mode: Zwift will control the resistance on the bike, you will feel the resistance changes on the slopes and the flat parts.
- In “Workout” mode: it will work the same but there is no difference between slopes or flat. So completely useless. Zwift expect you to increase the wattage without the application increasing the resistance, so the only way is to increase the cadence, at some point imposible since you are already at 120rpm or more.
With these settings, the issue is that you cannot manually adjust the resistance. So you cannot “change gears” so to speak, to adjust your resistance or cadence to the terrain you are in Zwift. You are locked to the resistance Zwift sets for that part of the road. In my case, too easy for the flat parts. Going 100rpm and not hitting 30km/h.
You may link the “Power Source” and the “Cadence” but not the “Controllable” options. With these settings:
- “Free Ride” and “Workout” mode work the same way. Zwift will compute your speed based on the resistance you set in your bike, your wattage and the slope in Zwift. So if you set your bike with, let say, level 15 resistance, doing 250w will give 30km/h on a flat surface or 20km/h on a 5% ramp (my numbers are not real).
With these settings you can manually adjust the resistance on the fly using the controls on your bike while in Zwift, but you will lose the automatic resistance change based on the slope in the Zwift world.
I’m trying to contact some technical guy at Bodytone to discuss about this. I will post if I get into something.
Summaryzing. Is not the ideal bike because of the missing “change gears” option within the bike while the resistance is being crontrolled by Zwift.