Bought this week a #25 chain and checked the length. Checked my 5430km chain against the new one. 0,3 mm longer across 23 chain links.
In other words ~ 0,2 %. Unfortunately the motor cog looks quite worn, but still no noise or any other shortcomings.
I wonder how a new cog looks like...
It comes back to 3 levels. If you derestrict or change wheel size this will stay if you plug in the iwoc again. I also noticed that I have to calibrate the sensor each time I opened the setup menu...got a bit scared when I did it first time and the bike was dead ?
Works fine to me. No individual level settig as with the app. You choose the max. amps for level 8 and the rest is divided into more or less equal intervals.
https://www.ebiketuning.com/mountaintuning.html
Garbaruk cassette 12speed 11-52, SHIMANO Deore XT chain CN-M8100 and Deore XT shifter RD-M8100-SGS working nearly perfect together on my Altitude Powerplay.
The Garbaruk is not rated for emtb, but cogs 2-12 are made of steel, no issues after 2500 km so far.
Riding with non-e buddies was easy during the one year with my converted mtb, adding a kit middrive motor.
Because I did not change that very short gearings I used in the last years before converting due to my fading power.
WIth my "new" (4300 km) Altitude Powerplay I need to overtake my buddies...
After switching from the SRAM 1x8 to a Shimano 1x12, the noise has diminished substantial. I still have the old drive train. I think it is the chain that makes a lot of difference.
I use the mtt; not for speed but for more flexibility.
I like the 8 power levels, there is proper support in any terrain to keep the heart rate where I need it.
Shortcomings are the fact that it powers down after few minutes and forgets the trip mileage and no Bluetooth connection.
A few words concerning the noise.
I replaced the Sram EX1 drivetrain by a mix of Shimano (chain Deore XT CN-M8100) and Garbaruk 11-52 casette.
Suddenly a lot less rattling from the drivetrain! Wow.
SInce my sixties are approaching I tested a lot of emtb by renting them for a day or weekend and taking rides until the battery was empty.
The winner is...the Rocky Mountain Powerplay C50.