I'd like to jump in here and remind everyone -- setup is everything. IF your motor is getting too hot during a run, the gearing is not correct. Brushless will generate as much torque as you ask it to, BUT with poor results if the gearing is wrong.
You should check temps during your first run, and if motor temps are high, gear down. You will often get MORE power and speed with proper gearing than with gearing that is way too high (because the motor is running cooler and in it's operating range.)
Nothing kills a motor faster than incorrect gearing.
