Specifications

  1.36V/48V -from 350W /500W / 750W  . rear brushless gearless  hub motor. phase angle 120 degree.dimensions= 205mm. axle=135mm,weight= 5.8kg. NM=45nm                                                                                         

  2.available to add disc brake.                                                          

  3.available for 8 /9 cassette gear                                                                                                                                                                                              4.with waterproof connector.                                                                                                                                                                                                      4.black colors or silver color for choice                                                                                                                                                                       5.performance: max speed=45km/h.load=120kg. efficency=80% .