How to make a Longest Electric Bike - 50km|h (social distance maintain bike)

motor 750w 48v brushless with universal controller
battery 48v 30ah lithium ion
How to make a Longest Electric Bike - 50km|h (social distance maintain bike)
How to make a Longest Electric Bike - 50km|h (social distance maintain bike)
How to make a Longest Electric Bike - 50km|h (social distance maintain bike)

bike)