Does anybody have any leads on where to get these two gears that sit in between the odometer and the tripometer? both of mine are broken. They appear to be 41 teeth and 16 teeth. The yellow arrows point to them in the second picture where the teeth are broken. Thanks for any input!

I purchased an older Arnnworx 920X version 4.01 and it came with this printed manual. I was unable to find it anywhere on the internet so I made a copy to share. It is attached..