VEVOR 750 W elektrischer bürstenloser Gleichstrommotor-Bausatz, Bürstenloser Elektromotor – 48 V 2700 U/min Motor mit verbessertem Drehzahlregler für Go Karts E-Bike Motorrad Roller

Dear Sir or Madam, we purchased four Brushless DC Motors BY10675Z, and we need additional information. - Could you explain to us what the " no-load speed " is? Online resources say 3000 RPM, and the physical copy says 2700 RPM... - Rated/Max current is one documentation 20A, and on the other 30A. Would be nice to have explicit information on the motor's maximum current. - Can you provide us with information if this motor is an outrunner or an inrunner, and how many poles it has? Regards,