e rad bike kit mid mounted electric bike conversion kit

750W motor fat tire motorized bike 21 speed

fat tire motorized bike (1)750W motor fat tire motorized bike 21 speed,with 48V 750W brushless big power motor,48V 20Ah lithium battery,max speed 40 km/h,the fat tire adapt  to most terrain,allow you go further and have more fun.
  

 

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