Putting together a 3000W rear hub drive electric bike. 16AH 72V battery. It is illegal to use on public roads in most countries. This one will be used off road only. The most important part of this build is the custom torque arms. With this much power, the small torque arms can snap the dropouts on this frame that was never designed to have power put through it like this at 11:17. From stop, if you twist it to 1/4 throttle or more, the bike will pop the front wheel up and flip you over. It is very unsafe, I wouldn't recommend doing this build to anyone, it just doesn't make sense.

Parts list here:
26" 3000w 72V rear wheel https://s.click.aliexpress.com/e/_Dm0...

72V 30ah Battery (buy at own risk, I would seek a name brand/certified battery) https://s.click.aliexpress.com/e/_DDF...

Controller, throttle, levers, sensor, screen https://s.click.aliexpress.com/e/_DFN...
^I can't find the same controller with the same battery connector, you might have to solder on a connector.

Wire junction box https://s.click.aliexpress.com/e/_DDq...

5 speed freewheel https://s.click.aliexpress.com/e/_DFg...

127mm square taper bottom bracket https://s.click.aliexpress.com/e/_DDS...

All other parts were already on the bike for the most part, torque arms were custom made.