That question was 4 years ago and I neither use those motors or controllers any more.
Limiting to 80 degrees is not required at all for DD hub motors.
Even with only 120 degrees rated magnets I had no permanent demagnitisation when running a motor (with Statorade) up to 170 degrees celsius at the windings.
Kv still unchanged and I checked the magnets with a gauss meter.
But you need to rewind the motor with higher quality winding wire (I use 200-220 degrees rated). Stock is usually only 130 degrees rated wire and the insulation usually fails before the magnets will start to demagnitized permanently.
Limiting the stock motors to 120 degrees at the winding should be fine based on my experience.
However on sur ron motors I have heard about demagnitized magnets several times.
Limiting to 80 degrees is not required at all for DD hub motors.
Even with only 120 degrees rated magnets I had no permanent demagnitisation when running a motor (with Statorade) up to 170 degrees celsius at the windings.
Kv still unchanged and I checked the magnets with a gauss meter.
But you need to rewind the motor with higher quality winding wire (I use 200-220 degrees rated). Stock is usually only 130 degrees rated wire and the insulation usually fails before the magnets will start to demagnitized permanently.
Limiting the stock motors to 120 degrees at the winding should be fine based on my experience.
However on sur ron motors I have heard about demagnitized magnets several times.