Garmin Force Pro Trolling Motor | Black 50" Shaft | 100 lb Thrust | GT56UHD-TR Built-InGarmin's freshwater bow mount flagship with brushless 100 lb thrust at 36V (or 80 lb at 24V), built in GT56UHD TR transducer (CHIRP + ClearV + SideV), and scissor style mount with dual gas springs. 50" shaft. $4,199. Garmin Force Pro Black 50" with GT56UHD TR Transducer The Garmin Force Pro Black 50" is Garmin's freshwater bow mount flagship, priced at $4,199. Brushless motor with dual voltage operation: 100 lb thrust at 36V or 80 lb thrust at 24V