RoadRunner 36V 25A Brushless Hub Motor Controller - F Revision can work with sensored or sensorless motors. To use a sensored motor as sensorless, simply leave the hall effect cable unplugged. Can also be used for brushless Wilderness Energy hub motors but some connectors will likely have to be changed. Also includes plug-in for APM-Display unit. The 25A controllers are the following dimensions: 4.2 inches X 1.7 inches X 6.25 inches (7.7 inches includes the mounting brackets). The 25A controllers weigh 1.65lbs.
Controls speed and torque of brushless sensorless motors Also works on brushless motors with AND without hall effect sensors Can be used for Phoenix II, Wilderness Energy, Crystalyte, and other brushless direct drive motors