You can’t base your gearing on what others run only use theirs as a starting point.

We all drive differently.

My lst with center diff started with 1800kv 48/16
Then 48/14 50/14 52/14 second motor 1500kv 52/14
Now I’m using 4092 1480kv 54/15 and in an all out grass run my temps are finally in the 130’s and occasional 145* spike but single fan has kept it in check.

If I can keep truck straight speeds are 50mph

If I want more then the trencher X’s gotta go for a more consistent tire.

My opinion you should try a 48/14