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Bringing old thread back to life to add some feedback. Been riding Bafang Ultra Smooth tune now for two years, over 2000km on it. No issues what so ever, it actually improved my cassette and chain lifespan. I think, something to do with how linear power is applied, no torque pulsation on/off as...

The answer to your question about smooth tune in details. Delta Voltage is voltage output by "Load Cell" or "torque sensor" minus base voltage. It's called Delta, because it's a fixed span. Say your load cell output 800mV as base line without load. With 10Kg load it will generate 1800mV. The...

I was rolling this for months now, since they released initial configuration. Then they updated it, made it even better. Mine is a copy with twin magnet. Bike is mainly used at MTB, trails. It rocks. They also posted new post, interesting read as bike they review have Bafang Ultra motor in it...

Latest Bafang Ultra software is here. Link is one paragraph down the test. http://frey-bafang.patransformers.com/2020/10/09/bafang-ultra-programming/

There is useful summary with some notes and explanations on controller programming Bafang Ultra and probably some other models without torques sensors: http://frey-bafang.patransformers.com/2020/10/09/bafang-ultra-programming/ I tested recommended settings, they are nice and smooth, but only...