My Edge 1030 shows an incorrect distance, it shows 10 meters while the indoor bike shows 100 meters (Johnny G Spirit bike)

Assume you are using a Garmin wheel sensor ?  

Have you checked the sensor battery is ok ?

If it’s data coming from the indoor trainer then sounds like an issue with the data being sent from the unit either being incorrectly formatted or decoded incorrectly by the unit. 

Is the bike on garmins supported list ?

Hello symo007 ! No, I'm using the bike sensors thought ANT+ (my indoor bike: https://www.johnnygspiritbike.com/connectivity). You can read suported protocols ANT+ for Garmin, Bluetooth, etc.

The apps Kinomap or Zwift detects power and distance correctly but Garmin 1030 not. I think that is a problem on Garmin. The bike shows 2 decimal on display, for example, 10,20km in total and the Garmin Edge 1030 shows ,1,02km. The comma separator is shifted one digit.

I have tryed to change units and again I put metric but same problem.

Do you have any idea?

I looked at the spin bikes specs. I don't see any reference to connectivity with Garmin. Garmin computers connect fine with the major brands but since yours is not a well known brand, I doubt Garmin will support it.

I believe it acts as a standard wheel sensor. Just check wheel circumference of your sensor configured on your garmin edge.

Hello cheracogoff.

On the website that I have indicated you can see it:

If it does communicate with Garmin products, then as randybb said, the correct wheel circumference needs to be entered into the Garmin. What wheel circumference are you using?

Hello cheracogoff. I've put the wheel size (1473mm) but I have same problem, no difference. If I change the value to other numbers I continue having same problem. 

If if you have a power meter on that bike, zwift totally ignore the speed sensor and computes speed based on power so it is normal it gets it right. On the Edge did you calibrate that speed sensor ? There is a parameter that sets the circumference of the wheel. You must set it right for that particular bike. With some indoor only bikes without a real wheel it can be tricky or even impossible because for some their rotation speed does not correlate with real speed - they have no gears and their freewheel rotation speed has nothing to do with that of a real bike wheel. 

. 

Do your numbers change if you put in another wheel size? How are you putting in the wheel size?  For you to put in a manual wheel size, the sensor has to be connected to the Garmin.