E-bike conversion kit 1000w 48v 27.5 inch (Brand new unused)

This kit unfortunately didn’t work for my bike because of my cassette gearing system and it needs a freewheel gearing system and that completely confused me because I had no idea what it was until now (specs and parts it comes with below) -30amp sinewave controller -1000w motor -35 to 40kmph top speed (according to manufacturer haven’t tried myself) -full twist throttle with comfortable grips -controller case for protection -pedal assist sensor -brake levers -torque arms -screws and bolts -ukc1 colourfull display with control buttons -Make sure your battery is 48v and has a continuous power output of 30amps or higher and has a xt60 connector to connect to controller -wheel weighs maybe about 15 pounds so it’s a little heavy but very durable it’s also 27.5inches -Open to any questions also up to trade maybe for a cheap ebike