Quote Originally Posted by CLAYTON View Post
Dear wiatroda , why you may use PM752 instead of PM542 . I think both are good options I have not found any problem in using PM 542 .
PM752 is 75 volts, versus 50 volts for the PM542. Motor top speed is roughly proportional to voltage, so 75 volts will allow the motors to run significantly faster - hence get PM752 if you can afford them!