You said in an earlier post that the original 1500W motor you were going to use was too big to fit in the correct position and you would have to use a 1000W motor.
It now appears that you are going to use a 1500W motor but as you state above it is a 60 Volt motor but the battery you are going to use is only a 48V. How well will the 60V 1500W motor run on 48V.
Good luck with your interesting project.