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Is it still the Bafang Bpm/cst 250w?

It get info from the motor,but the speed is much to high on mine.Maybe just the lcd parameters

For information this is the ONLY controller that works with the MAC motor on BMS Battery site I was told.So the s12s or others will not work

Dont know if this work with old version mac/ezee,read somewhere there was an odd timing or something with the hall sensors on the older ones.But it works exellent with my new Mac 10 cst motor.Just match the wires hall wires and motor sensors color for color.It is VERY quiet .And you can use...

yes I have tried the q128H in a 26 wheel and I agree its perfect:) So I think I will go with 27.5

One additional thing about torque sensing controllers. When going up hills and changing down gear to make things easier this presumably reduces the amount of assistance which is sort of counter intuitive. Are cadence sensors better in this respect in that they should increase the assistance as...

I have a q128c motor.36v 201 rpm and a 48v battery with 18amp controller.I have two options.27.5 weel or 29 wheel.Any Idea if I will feel any significant loss of torque If I lace the motor into a 29 wheel?

I understand,I didnt know that a bigger motor rotated slower for he same number of turns..Thanks for answering

The 250w and 350w are the same .The 500w a little wider nd the 750 is a beast.But the 250/350 looks wide enough to take some current if the battery can deliver 20ah contuinously. https://sondorsforum.com/topic/1171-has-anyone-opened-up-their-motor/

So that means that the size of the motor has noting to say for the output of the bbs 02. It could be bigger or smaller as long as it can take the current it wil not change anything?

I had a feeling it wasnt that easy,but what if you take an 5T mac motor and give it 1:10 gearing.that would give it same speed as an Mac 10T right? but the windings would be thiker and it should be harder to overheat.And also the torque should be better as far as I understand.what do you think...

yes but If you change all those parameters and have the same controller current and gearing will it double the toque?

If you have an Bafang bbso1 motor and you somehow doubled the rotor diameter and of course the motor house so the rotor fits inside.Othervise the motor stayed exactly the same.same speed windings,same gearing and controller.Would this doubled the torque of the motor?

The controller is 48v 15 a Dont know the motor code yet.But the motor should basically be the same as the new Bafang sw 06 hub motor(smaller BPM) as it is 158 mm diameter and 1:5 gearing.Havent tried a fatbike yet so dont know the rolling ressitence.Since the battery is 17.5 amp it should be...

Any thoughts on this bike.Dont know much about the g06 motor but have heard it is torqy.Anyone tried it and can compare it to BPM,Mac or q128 h/c motors? Battery should cover some distance https://sondors.com/collections/europe/products/sondors-x-eu-only

I havent done it personally.But other screw on plate motors can be very hard to open.I think D8veh has said before they are very difficult to open?Also they are not easy to find anymore.The 6 screw plate are most common

strange because I have an 6-7 years old BPM motor that looks the same as the pic.And all the new BPM motors on aliexpress or at bafangs homepage has the 6 srew plate.The screw on plate BPM is hard to find today

The motor on the pic is an old BPM,difficult to open.

I dont understand this sudden question if 48volt are legal or not.There are many 48v oem bikes tht are legal