Parts compatibility for rat rod build

While waiting for controller/hall sensor tester in order to troubleshoot my electric fat cruiser, I am starting my list for a board tracker replica.
As I already have a 48V/12Ah battery/charger which is quite strong, I want to use this base as a build start.

1. For an average 36V250W motor can I run a 48V/1000W controller on it? I plan on putting ATF oil inside it for better cooling and usage should be 90% on flat with some peaks of 800-900W (maybe when I just want to overtake another cyclist on the street). As I am 220lbs, start should be with pedals or just a push and max speed should not be more than 30km/h - 19km/h. I read around here that this is douable, but... Well, I don't like burning stuff and another confirmation is good. Plus, I want to keep the weight as low as possible and these 36V/250W motors are quite compact and light.

2. I plan on buying a second hand 36V motor, I can get them quite cheap in my country as people are very careless about their ebikes and no one really knows how to repair them. For example:

https://www.olx.ro/oferta/roata-electrica-cu-motor-IDbNynB.html#e12b4d46a1

Seems to have some issues with the wiring, needs to be checked inside, but overall quite ok. It's a BAFANG 36V250W so pretty reliabe/strong.

Any type of Hall controller will work on it? Or should I just go with one without Hall sensors?
I am asking this because I saw that there is a multitude of hall chips inside the motors (even for the same motor) and I don't know if they are compatible with different controllers.
What I think it would work:

https://www.aliexpress.com/item/36V-48V-1500W-Electric-Bike-Bicycle-Controller-with-LCD-Panel-E-bike-Speed-Adjustment-Throttle-Handles/32921998737.html?spm=2114.10010108.1000014.4.d01e18579mc8sN&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.106568.000000000000000&scm_id=1007.13338.106568.000000000000000&scm-url=1007.13338.106568.000000000000000&pvid=1883698b-6bd9-4adf-b937-7078707c51f7

3. Any type of throttle/brake levers will work on any type of controller? I didn't see any clear recommendation, I see that all throttles have 3 wires and all brake levers have 2 wires. Is this more or less universal? My logic says yes - these are passive components but I am not so sure.

4. Controllers - is there a database or a way to recognize their types/particularities? I scroll around ebay/aliexpress and there are so many of them that it just blows my mind. Some have quite nifty features - but how should I use them? For example the one below, how should I start it? A normal button with memory or one that just shunts for a moment the circuit? And the self -learning, is this based on controller measurements made during the rides or it's something already programmed and the controller just applies the logic?

https://www.aliexpress.com/item/15-Mosfets-36V-48V-800W-1000W-35A-Dual-mode-Sensor-Sensorless-BLDC-Electric-Bicycle-Scooter-Controller/32912585673.html?spm=2114.search0104.3.2.5e3945174mZvvt&ws_ab_test=searchweb0_0,searchweb201602_5_10065_10068_319_317_10696_10084_453_454_10083_10618_10304_10307_10820_10821_10301_538_537_536_10059_10884_10887_100031_321_322_10103,searchweb201603_51,ppcSwitch_0&algo_expid=9cd4d540-1c8d-46c2-8f94-e1b4be0e0177-0&algo_pvid=9cd4d540-1c8d-46c2-8f94-e1b4be0e0177

Get a kelly controller

a non geared hub with ferrofluid works fine

atf has alot of rotational weight

id rather that weight copper and magnets

FWIW, the copper is not rotational weight, unless you're using a brushed hubmotor.

Sooo... ATF not good because it weighs a lot? And also - what is a kelly controller?

Hi guys,
I narrowed down my parts list. Since it will be a rat rot, I need to keep it really clean, this means a hub motor on the back with basic pedalling sensor.
The controller+display+PAS:
https://www.aliexpress.com/item/Fre...000&pvid=df77307f-0e2c-4ead-b6f1-fb32ebd858f1

The wheel:



The controller works sensorless/sensored. But maybe I missed something? I could use some advice here, please.
Clearly the wheel plug is different than the controller, but I believe I can detect the sensors and the phases.

Navarro said:

Clearly the wheel plug is different than the controller, but I believe I can detect the sensors and the phases.

Click to expand...

You'll need just one more cable.
https://www.aliexpress.com/store/product/Waterproof-Motor-Cable-Motor-Wire-Motor-Connector/738588_32816702314.html?spm=2114.12010612.8148356.11.6385e7d1Y8zLu3
2nd or 3nd version, depending on your controller placement.

Excellent! So basically I am ok, parts should be compatible?

Yes three big wires blue,yellow and green are phase wires and 5 hall wires. If used in sensorless mode just dont connect. The wire colors may no match motor to controller and may need swaped some controllers have a self learning wire. Yes just three wires for throttle and most brakes have two wires some old types have three wires. Just hook up what you need and label what you can so you only have one or two questions. You can also write it down on a piece of paper to put in you new ebike book and bills.
Plus the spring on the axle for protecting the wire from the axle so slide the spring inside the axle.