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Well there's definitely some differences between the two. Mobil SHC100 is NLGI #2 where Cornhead is NLGI #0. The yellow grease that was in there from Bafang was at least as thick as the Mobil. Additionally Cornhead grease states that it liquifies in use and that's what gave me some pause since...

You shouldn't need advanced communication such as CANbus to calibrate the battery % shown on the display properly.. but bikes without are often way off. What may be a reason for some concern is if there is some change from prior charges and/or display readings.

Ok... Do you remember if these chargers were able to finish off the batteries at the proper 54.6v? Sometimes if not properly matched they can be too aggressive at the end of charge and though they will bring it to 54.6v, an hour later the battery will have settled a little lower. In most cases...

Check the voltage output of the charger and /or try another charger. Output should be 54.6v I calculate 53.9v to be 97.4% of actual battery capacity, not the usable capacity that most tables illustrate. But yes it can mean that the capacity is starting to decline. As the internal resistance of...

Coolio! If I can be a total pain in the arss. Would you mind taking a screenshot of the available settings "where a new screen is available in this display, and I can adjust the settings for each PAS." But don't let it cut into your ride time. 👍

I don't believe there is such a thing. Perhaps calibration isn't the correct term? A fouled battery connection you know and can definitely show itself in that pulsing manner. Now your other troubleshooting that showed that the throttle was working fine and that the shift sensor may be faulty...

The battery connection goes bad from vibration and/or water ingress. I'd guess that the battery was starting to have a problem and that the gear sensor accelerated it with pulsing power on/off. If you briefly pause pedaling before shifting there's no need for the gear sensor. 12k mi/3 yrs...

But it sure is nice to be the 1/1000 😊

Totally agree on the UART requiring tuning and some grease... Though I went with Mobile SHC100 and it didn't seem to quite as much as I would have liked. But I also didn't over_pack as I see many did with the Cornhead so that might be the difference. I'm very happy with the tune and it's very...

Wasting two weeks sucks... They should have at least checked inventory when the order was received. Especially on a high price/low inventory item of which I can assume they typically don't have 100 motors sitting on a shelf. I've gotten stuff from GBK relatively quickly but it was mostly light...

I'd start by unplugging the gear sensor. Any errors on the display? Any brake indicator blinking on the display? Do you have a throttle? If so does that work correctly?

I concur 0 - 9 is the way for me. I have 1 - 4 my most used tightly spaced so the sensation felt going up one PAS is more that it just got a little easier to pedal than a boost in acceleration... though the two are intertwined.

Surprised... They've been pretty solid in the past. Hopefully you'll get it soon.

Why not send a few pics of your current cogs to the LBS, ask them what other information they may need like bolt quantity and spacing and have them get it for you? Or ask Zen for the current spec? Here's another calculator that may work better on your iPad Gates Calculator 60/19 will give you a...

I say ride both of them.

I'm not suggesting that you don't make some changes to the bike.. just that you ride a bit longer to better understand what it is you have. A couple of observations... You haven't riden in a year. I become petrified after not riding 3-4 weeks in the winter when it's too cold. 🤣 So give yourself...

One thing also to consider... Your ability is your ability.. as is mine. And again though the 2.5 is too bias toward the lower gears.. by increasing the gear ratio you also will be making it harder to pedal in any particular gear and thus may require more assistance. I know gear 11 is the...

As you can see you are in good hands so don't throw the baby out with the bath water just yet. 1... I think some front/rear sprocket changes should be doable. 2... You're just getting back in the game after a long while and you may be able to get your cadence up a little once you get back in a...

That's great... I believe you've gotten further with this than anyone else here has. If you get a chance can you elaborate? What changes were you actually able to achieve and what's the process with the BESST and display. If you have any links to the firmware... awesome as well. Shame you...

You got the Bluetooth working? Are you able to tune the motor with the app? Or tune with the BESST PRO?