1 pc Hub Motor (Rear or Front). 1 pc Display(Optional). If you choose “Not have” then will not come with display. 1 pc Left PAS sensor. 1 pc Controller Box. 1 pc Motor Controller. 1 pc Brake Lever or Brake sensor. 1 pc Thumb Throttle. 1 pc 1T4 Cable. 1 pc Plastic Straps.