Zwift with a Spinner bike

About 7 years ago I purchased a high end spinner bike which I ride in the winter.  I was able to configure speed/cadence (GSC 10) on the bike and get results into Zwift.  The problem?  My speed is up at 50mph when I have about a 90 cadence.  Is there anyway to configure Zwift so that this is a more reasonable speed.

Bill,

 

I have the same problem. I think that the problem is that the wheelsize smaller is than a normal bike. And you’re not able to define the wheelsize in Zwift.

So I can’t figure out that this will be working in a correct manner. Or did you figured it out in the meantime?