MTE Hub VS superflux

My hypercore motor (with VESC UBOX100) overheats quickly in hot weather (mountain off-road and skatepark). Has anyone tested MTE HUB? about overheating?

No huge difference in my testing with N52 MTE. There may be slightly better thermals, but certainly within margin of error for tests that weren’t perfectly controlled. Your best bet when sticking with the Hypercore would probably be statorade, but even then, the benefits would be marginal compared to what you get with other motors.

If you can control the increase in controller/MOSFET temps, the Superflux is going to get you significantly better motor thermals compared to any Hypercore setup.