You can see the wheels Information in the wheelsOverwriting lua file. It references an xml file that has all the traction values for the wheel types. Dural made a few that are not the standard type. The tire type of “chains” may be something you could use and modify the values in the wheels xml file to your liking?
You want to say that there are already given values for this type of propulsion?
I have not seen such tractors adapted for MR, and you?
It seems to me that the slippage parameter will be there as for rubber tracks, but there must be another.