Stages SB20 Half Cadence Issue

Bugs and Support
1

Hi

I use Zwift on Apple TV on a Stages SB20. Up until recently it’s been fine but it’s started only showing half the cadence. I only do erg mode workouts and it’s now impossible as the power keeps going up and down with erg mode turning on and off. I used to pair to the bike (not the power meters) as instructed by Zwift and stages.
I’ve put new batteries (energiser) in the power meters. Reset/zeroed/re-paired everything but no luck. If I go onto the stages app and pedal then the correct cadence is shown. It’s also correct if I connect to my Garmin edge 1040 or my Garmin watch.
I can get Zwift to display the correct cadence if I pair power and cadence to the one power meter (the other pairs through this one) and then pair the resistance to the bike but that takes up a Bluetooth channel so I can’t pair my heart rate.

Also worth noting is that the Zwift app on my iPhone also displays half cadence and the pairing with the Apple TV via the Zwift companion app also reads incorrect.

I’m not sure what to do and have spent hours googling with no luck.

Thank you

Andy

2

That is odd that it works when you pair to the left crank arm but not when you pair to the bike. Since it sounds like you have been running the Zwift app (not Companion) on both a phone and Apple TV, you have to be completely 100% sure that you didn’t leave one of those apps running while you tried using the other. Like if you use the phone to run Zwift, power off the Apple TV or delete the app from it to be absolutely sure. You can also contact Zwift support to find out if they have observed any simultaneous use of the app on multiple devices, which they can see in your logged data. Obviously you can’t contact Stages support since they died but if you are a Facebook user you could also post in the StagesBike SB20 Owners Group. That’s where you will find the most SB20 experts.

Your other option is to pair via the Zwift Companion app so you don’t run into the Apple TV connection limitation.