I ride a sla36 volt ev global brushed 500 watt geared heinzman and it`s been reliable with no break downs. With about 500 miles use.
Just smoked a controller on the bench with a few extra volts, my fault.
that`s the 0 mile rank.
The project is to add current ebike tech to an un ridden 24 volt ev global ebike. Hoping to have it go farther, quieter, and with more zip.
Lithium batteries, dewalt or milwuakee for range increase and weight reduction. Even newer bms waiting for assembly.
Brushless geared rear hubmotor , quieter, snappy acceleration, bmc v1 with supplied controller was gutless, so I overvolted and let some smoke out of that controller. Another better adjustable controller will be here soon.
Good thing I have a working spare e bike cause this project thing is moving at a snails pace.