Is this a proper Motor and ESC combo for my project?

[Bmr4life]

Running weight will be under 400lbs with rider.

Goals are at least 25mph top speed with the ability to also climb a 20 degree slope (so not giving up all my torque for top speed). I was told I would need ~7KW to accomplish this which I'm fine with.

For batteries, I will use 14 24AH lithium cells from a Ford Energi 24AH battery pack. Can increase voltage with more cells in the future. The info I've found says the cells are good for 150 continuous amps.

I like brushless so that's what I have been focused on.

Motor - Motenergy ME0201014201 http://motenergy.com/me0201014201.html
Controller - Kelly KLS7250D https://kellycontroller.com/shop/kls-d/

The only thing that concerns me about the controller is this statement from the website.

KLS-D is currently being phased out. Other KLS models are recommended for new customers.

 

[larsb]

Difficult to give some input if you don't have a description of your ride: what is it, wheel size, primary use, riding conditions and environment.

First, 6hp motor is 4.47kW not 7kW, question is then how long your hill is and what wheels you'll have. Looks like a great motor with the 90% peak efficiency

Below are rough figures,just did this on the phone calculator:
torque constant is 1.63Nm per amp, at 4,47kW (62A@72V, 90% efficient) you'd get about 90Nm continuous, 2-3 times more peak

Motor rotation constant kV is 50 rpm/volt
At 72V the unloaded rpm is 3600, loaded rpm 3060, assumption loaded/unloaded=0.85

Loaded speed (as an example) with 17" tyres with 1.7m circumference is 52kph/32mph if gearing is 1:6

Force to overcome a 20deg slope at 400lbs weight is 609N, this is acting on 1.7/2 lever given wheel size; 518 Nm needed.

gearing of 1:6 gives 90*6 Nm; a continuous torque of 540Nm but you also have lower efficiency at high load and there is wind resistance and drive losses. It will need more current than the 62A continuous rating to get up the hill in real conditions.

-You will meet the speed goal
-You'll make a 20degree hill with the available torque on shorter hills
-You won't be able to do that kind of hill continuously
-You'll be OK if the hill is not really long, motor has 300A for 1 minute peak rating, in that minute you could get 666m at peak current assuming 25mph speed. I think the real distance before overheating will be a lot longer than that.

Kellys are highly overrrated, i'd rather get another brand of controller. Nucular 24Fet sold by vasilisk here at ES possibly but it's beta and there's a que to get one.
https://endless-sphere.com/forums/viewtopic.php?f=31&t=75494

Good luck!