The displays only show ambient air temp and there isn't any controller wiring for temp, though one might be able to use the throttle wiring if one could fit a temp sensor. One can do so on the tsdz2 if the throttle isn't needed as the motor outer is static in the main housing with controller.
Reducing the current will reduce heat, the controller and hub can be felt for heat issues.
Without cooling the hub will have a limit of how much heat will melt the nylon gears.
As mentioned 12a x 52v is 624w & 15a is 780w. We know from experience the larger akm100 max was 20a @48v before the nylon gears melted and many had issues pushing it more.
Reducing the current will reduce heat, the controller and hub can be felt for heat issues.
Without cooling the hub will have a limit of how much heat will melt the nylon gears.
As mentioned 12a x 52v is 624w & 15a is 780w. We know from experience the larger akm100 max was 20a @48v before the nylon gears melted and many had issues pushing it more.