New controller for old bmc v2 motor (like mac)

[jonnybee_123]

Need a new controller and after scrolling the internet for days I'm looking at a phaserunner
Is there a cheaper alternative that will do just as good ? I've also been looking at kt controllers with lcd display and a pas I prefer there displays over the ca3

 

[amberwolf]

What specific features, etc., make the phaserunner "good" to you?

We need to know that to know what might be "just as good", for your purposes.

 

[jonnybee_123]

What specific features, etc., make the phaserunner "good" to you?

We need to know that to know what might be "just as good", for your purposes.

Hi I just want a smooth power and the ability to use a pedal assist..but.i dont really like the CA that the phaserunner uses I prefer the nicer looking smaller units
Also I like the size of the phase runner it looks like it could be mounted to the down tube without a bag (might be wrong )
For now I really just want to get the bike going so I'm open to anything
If I could.get a link or some info on the pros and cons of different controllers it would be a big a help
I also like the feature of different power settings
Thanks

 

[jonnybee_123]

Leaning towards a kt controller from aliexpress 100 bucks with pas sensor and lcd only downfall it is set at 20a /40a max id like 30a can these be programmed ? I suppose it would be running abit close its max then tho

 

[fourbanger]

I believe I heard somewhere (probably on this forum) that the older BMC motors were a bit picky about which controllers they'd talk to. Something about the hall sensors running at too high a frequency for a lot of controllers. You might do well to get yourself a dual mode controller just in case..

EDIT: A cursory search comes up the the issue being that the older MAC/BMC motors had a weird phase angle (80 deg) that a lot of controllers had a hard time understanding. I'll do some more research (eventually) as there's a guy on ebay selling V1 BMCs right now at a decent price and I've been thinking about picking one up myself.

Best.

 

[jonnybee_123]

That's interesting I've just changed the hall sensors in the motor hope it works
It was running fine before with a 'infineon' 9fet controller from em3ev