72v dual tire electric scooter from bike parts

250w geared hub motor 72V 9Ah 21700 battery pack 48v/72v 1200w controller 38A (hack to 11A) tires in 12in rim scooter 35kph max speed. 30km range per full charge battery are from: JRV solar you can find them on Facebook if you have any suggestions project let me know in comments section