The more I read about them the more I'm inclined to get one for experimenting.
For m purpose though I'd like to have one with a 5mm mm axle, and I did find some... but alll 3S or higher.
One had a chart showing performance for different voltages and showed far from optimal for the voltage range of a 2S pack.
Is there anything you could recommend with a 5mm diameter axle?
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