I just received my updated adapter plates. They adapt a speed 300 or 400 motor to a standard 540 bolt pattern (16 or 19mm to 25mm bolt circle). This comes in handy for mounting small outrunners or 380 motors to a standard gearbox. I flipped the design from the last run of plates, as the mounting screws interfered with the motor wires on almost all outrunners. Also, every small motor (except mini's) on my website comes with these standard. "thumbsup"

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