Hi. I am also starting a dual motor upgrade to my custom frame fat tire cargo bike. I currently have the Ebikeling fat tire rear hub motor kit and have been running it for about a year now without issue. Id like to have selectable two wheel drive since I use the bike to haul my kiteboarding gear to the beach and its super heavy (loaded and unloaded lol) My plan is to get the ebikeling front hub motor since I assume motor specs are identical between front and rear but just have different axle widths. I have two ebikeling motor controllers and was planning on paralleling in the signal wire to both controllers through a common throttle. Same with the brake lever interlock wires (similar to what is done in this diagram: https://electricbikereview.com/forums/attachments/screen-shot-2018-05-20-at-1-13-43-pm-png.22064/ ). I was hoping to put a 3 position switch on between the throttle and the two controllers so I could select between front, rear and all-wheel drive by just selecting which controller(s) are able to get signal from the throttle.
That part seems really straightforward but something I didn't think about was whether or not this second controller needs its own screen and how the 5 different power levels I have on my current, rear-wheel setup would be managed on this controller. I was hoping to just run this front motor off of one throttle along with the rear and I was certainly not wanting to add an additional screen and more buttons since I just don't have the room on my bars and don't want extra clutter up there. I realize I wouldn't have any current measurement capability for front motor but would be ok with that. Does this approach sound like it would work with these types of controllers or do i need to get a different controller that maybe doesn't need a screen and buttons to operate? was hoping this would be fairly plug and play. Thanks for the help!
