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by buro9 3352 days ago
It's a pedal assist variety of electric motor that provides up to 45km/h on the flat and 32km/h on mountains depending on the motor chosen.

http://www.go-swissdrive.com/en/the-go-swissdrive-system/mot...

Singlespeed, I assume you just got this from the drivetrain type which doesn't really relate to hub-geared electric motors.