KT controller compatibility with Mahle

[Morrisgj]

does anyone know if a KT controller will work with a Mahle x35 hub motor? The motor has the 9 pin connector.

 

[harrys]

I think it should, if Mahle follows the same color scheme as Bafang, I believe I've used six different makes of hub motors over the years, although the majority were Bafang and Aikema. Matched colors on phase/sensor and they always spun up,

I know there are a few oddball makers that don't know what they are doing, but I've never encountered them.

I have encountered a 9 pin extension cable where the arrow was off by 45 degrees. That cable was problematic. Gave poor contact,

 

[Morrisgj]

Thank you.
I am new to all this. Will the KT controller work with only battery, motor, pas and display connected.

 

[harrys]

If your KT controller has the flat connectors for the display, it probably came with a jumper that allows it to run without display on throttle or one PAS. If it has the round 4n1 harness that goes to the handlebars, they don't give you a jumper.

What I often do is hook up the KT controller, battery, motor and display. Then hit walk mode. When the motor spins, I know it's connected.

 

[Morrisgj]

Thank you.

 

[Morrisgj]

Would you be able to recommend a suitable controller and display model. It’s a 250 watt motor, 36v.

 

[thelarkbox]

KT brand controllers are popular because you can select any LCD display from the range that meets your aesthetic KT-LCD3 is t most popular and probably the cheapest. google and check out the manual pdf files for the displays you are considering (20+ pages)

For a 250w motor, most bikes come with a 15amp controller but 17a or even 20a controllers could be used if your battery supports the higher draw.

Sine wave controllers are a bit more expensive/complex than square wave controllers but should also provide a ?smoother? ride? (just repeating what ive read, only having experiences sine wave controllers?????)


So your probably on the look out for a 15-17amp (peak power) sinewave controller with the plug option most suited to your bike.. (if you have a choice avoid the 'waterproof' julet style. They are a good idea until it comes to tracking down a fault.. .)

 

[matthewslack]

I find a short male to female extension lead solves all the issues around access for faultfinding, and in non-fault mode, which should be most of the time, neat and reasonably weatherproof connectors have some advantages.

Add extra layers of protection if concerned. We have an expert on that...

I split a short extension in two, add a terminal block in the middle to join back together, making everything accessible.

 

[Nealh]

If the hub has the same julet 9 pin connector then most motors should work, one isn't guaranteed wire matching colour will be 100% though I have had no issues with Bafang , AKM, MXUS and other hubs .
If a motor doesn't run 100% then one has to go thru the 36 possible motor/hall combos to find maybe three or four combo's that will work well, for this one will need a KT that has the separte phase and hall wire connectors so as to be able to change wire combo's.