Bafang Ultra, new (quiet) steel gears, Canbus Calibration with the K1-Flash worked great!

[Tom@WashDC]

My riding partner has ridden a Sondors Rockstar with a Bafang Ultra (CANBUS) for the last three years. We've been riding together about 4 times per week. I've always teased him about the excessive motor noise that his Ultra Motor makes. We both ride with SENA Bluetooth communicator helmets and I can hear the constant whine from his motor gears. Recenly he purchased and installed the new quieter steel gears for his CANBUS Bafang and he had to calibrate the motor, so he purchased the K1 Flash for the calibration. The caibration took 30 sseconds. Worked like a charm. His motor in now practically silent.

 

[JRA]

Now you will have to start ribbing him to get an IGH eh?

 

[Tom@WashDC]

Now you will have to start ribbing him to get an IGH eh?

Oh yeah, I'vebeen working him on that! He's got that primitive rear cogs and derailleur thingy!

 

[greeno]

DJI or MGU Pinion when availible looks to be my next bike.
Decisions decisions.

 

[Tom@WashDC]

DJI or MGU Pinion when availible looks to be my next bike.
Decisions decisions.

Yup, after a few more producton years, some heavy real world usage, lots of good reviews, and a ubiquitous parts inventory, and none of that "proprietary systems" bullshit, I could be tempted,

 

[greeno]

Absolutely correct.
Just like most products never buy the first series production let them work out the bugs by someone else.

Seems like most manufacturers have “proprietary systems” for their drive systems anyways.
Either in the motor mount or battery storage. So we’re kinda stuck there.
Hell even some of the same bike brands generations are not interchangeable with motors and battery’s.
Which limit the lenght of time usable if you want and kind of upgrades, wattage storage, torque etc.

Components are pretty interchangeable, but we don’t buy a bike because of the components they come with.

 

[il Munduato]

My riding partner has ridden a Sondors Rockstar with a Bafang Ultra (CANBUS) for the last three years. We've been riding together about 4 times per week. I've always teased him about the excessive motor noise that his Ultra Motor makes. We both ride with SENA Bluetooth communicator helmets and I can hear the constant whine from his motor gears. Recenly he purchased and installed the new quieter steel gears for his CANBUS Bafang and he had to calibrate the motor, so he purchased the K1 Flash for the calibration. The caibration took 30 sseconds. Worked like a charm. His motor in now practically silent.

So which is quieter?
Old gears with Cornhead or new gears

 

[Tom@WashDC]

So which is quieter?
Old gears with Cornhead or new gears

I would say they are equal now. His gears have a very tiny, almost imperceptable, high pitched whine, noticable through the Sena Bluetooth Helmets. Not significant, his motor sounds much better. He cannot hear anything from my motor through his helmet over his own ambient riding noise. My motor is very quiet compared to what it was when I purchased it. I have no need for the "quite" gears. I presume the Cornhead made the difference.

I orignally installed Cornhead grease in July '22. Then added 2 tablesoons of Cornhead when I installed my Rohloff hub in April 23'. So far so good. I was thinking about opening the motor again just to look at it, but, alas, my laziness cannot overcome my curiosity at this point, since it's working so well after 26 months.

 

[il Munduato]

I would say they are equal now. His gears have a very tiny, almost imperceptable, high pitched whine, noticable through the Sena Bluetooth Helmets. Not significant, his motor sounds much better. He cannot hear anything from my motor through his helmet over his own ambient riding noise. My motor is very quiet compared to what it was when I purchased it. I have no need for the "quite" gears. I presume the Cornhead made the difference.

I orignally installed Cornhead grease in July '22. Then added 2 tablesoons of Cornhead when I installed my Rohloff hub in April 23'. So far so good. I was thinking about opening the motor again just to look at it, but, alas, my laziness cannot overcome my curiosity at this point, since it's working so well after 26 months.

So now I'm wondering if a quiet gear Ultra was greased with cornhead.... would it be so quiet that it would actually absorb sound?
It could turn your Bluetooth helmet into the portable cone of silence!