Description: There are 2 versions of the 48V 750W (25A) controller (old and new). Before purchasing, please unplug the controller and motor connection and check that the controller you choose matches the motor connector on your e-bike. This is very important! Suitable for: SF20/SK20/Kangaroo/SX20/SJ26/SF20H(non-UL)/SN100(non-UL)/Reindeer(non-UL) are equipped with a speed sensor. If your e-bike is equipped with a torque sensor, it will not fit. Note: The customization cycle for a 3-pin is about 3 weeks, and the shipping time is approximately 7-10 business days. Please choose the correct version of the controller for your e-bike. If your controller is not 25A, please don't buy it. The NEW controller has an additional blue plug, which is an open wire that goes to the taillight. If there is no taillight, then no connection is needed. All accessories are non-refundable and non-exchangeable.
