I think the confusion here is not rpm, but throttle position. Due to the way which BL controllers work, they generate a lot of heat at part throttle. The more powerful the setup the more heat is generated more quickly. So most BL motors (actually the ESCs) don't like to be run a lot at part throttle. If low rpm or low speed is needed, best to either run less voltage, or get a motor with a lower .Kv. This allows full throttle running at lower vehicle speed.


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