Friction drive project - Need some help

Hi everyone. Sorry for my english, i'm from france.
I'm looking for build my first friction drive ebike, and I need some help to know if I am in the right way.

that is my component list:
Motor
https://www.banggood.com/fr/N5065-320KV-1820W-Outrunner-Brushless-Motor-For-Electric-Scooter-Skate-Board-DIY-Kit-p-1270024.html?rmmds=detail-left-viewhistory__4&cur_warehouse=CN

esc:
https://www.banggood.com/fr/FlyColor-Waterproof-Brushless-120A-ESC-2-6s-With-5_5v-5A-For-RC-Boat-p-1162280.html?rmmds=search&cur_warehouse=CN
or
https://www.banggood.com/fr/Hobbywing-Skywalker-2-6S-80A-UBEC-Brushless-ESC-With-5V5A-BEC-For-RC-Airplane-p-1039600.html?rmmds=search&cur_warehouse=CN

battery (x2 in series):
https://www.banggood.com/fr/ZOP-Power-11_1V-5500mAh-3S-45C-Lipo-Battery-XT60-Plug-With-Remote-Battery-Monitor-p-1108833.html?rmmds=search&cur_warehouse=CN

server tester:
https://www.banggood.com/fr/Servo-Tester-Third-Gear-Switch-With-Indicator-Light-4_2V-To-6_0v-p-1079862.html?rmmds=search&cur_warehouse=CN

As I can understand, kv on a motor is the number of lap per min per volt.
So with 22.2V, my 50mm motor can theorically run at 7041tr/min (a little bit more than 60km/h).

this motor is a 1820w.
with a 22.2V battery, I have theorically 82A max (normally ok for the ESC)
With 22V 5A Battery, I can have 111Wh to help me (111w during 1Hour)

I 'm doing 30km to come back home almost every working day in 1 hour(without motor). I find I spend 200w to go that fast.

So...
Is my setup will help me to save half my energy?
Is my Setup would only work?

anyone can see some mistakes in my setup or calculs?
I'm a noob, I'm really not sure and I need some help.

Thanks

Here is a friction drive.https://endless-sphere.com/forums/viewtopic.php?f=31&t=20491&p=1367416&hilit=Friction+drive#p1367416

Is someone know how to calculate the motor torque?
I found this site :https://www.engineeringtoolbox.com/electrical-motors-hp-torque-rpm-d_1503.html
with this motor, the site tell me 2.35Nm

Don't know if it's enough to help me on hills.

I saw this thread: https://endless-sphere.com/forums/viewtopic.php?f=31&t=86961&sid=3c68b8f99aa61d26393a3193ac8ebc74#p1271289

I will probably do somethink like this system.

I think that motor Will have low Torque. I would use under 200 kv. 140-170kv and 6374 instead of 5065.
There's racerstar 140kv 5065 at banggood for cheap.