Brushless motors aren’t new to power tools, HVAC compressors, or electric vehicles — but their arrival in bow-mount trolling motors over the past two years is genuinely the most significant performance change the category has seen in decades.
In 2026, the three top-tier brushless bow-mount systems are the Minn Kota Ultrex Quest MEGA DI/SI, the Garmin Force Pro, and the Lowrance Ghost X. All three eliminate the mechanical brush-and-commutator assembly of the traditional brushed DC motor — the result is higher efficiency at partial throttle, less EMI noise on nearby sonar systems, and longer service life.
This article compares them across the metrics that matter to competitive tournament anglers: thrust, battery runtime, GPS anchor precision, sonar integration, and display platform compatibility.
Why Brushless Motors Matter in Trolling Applications
How Brushed Motors Waste Energy
In a conventional brushed DC trolling motor, current flows to the armature through physical carbon brushes that press against a rotating commutator ring. This switching creates heat, friction, and electromagnetic interference. The EMI is why you often see sonar noise when the trolling motor runs at mid-throttle. At partial throttle — where you spend most of a tournament day — a brushed motor typically operates at 40–50% efficiency. The rest is heat.
What Brushless Motors Do Differently
Brushless DC motors replace mechanical commutation with electronic commutation — a motor controller switches current to the appropriate winding electronically. No brushes, no commutator wear, no brush-generated EMI. At mid-throttle (50–60% of max thrust), brushless motors operate at 80–90% efficiency vs. 40–50% for brushed. This efficiency gap is the source of the 35–40% runtime improvement all three manufacturers cite.
In sonar terms: brushless EMI is dramatically lower. Anglers running live sonar alongside a brushless trolling motor consistently report cleaner images compared to brushed setups — even without ferrite chokes on the motor cables.
Minn Kota Ultrex Quest MEGA DI/SI — The Platform Integration Champion
MEGA DI/SI Integrated Transducer
The Quest MEGA DI/SI runs a Humminbird MEGA Down Imaging and Side Imaging transducer inside the motor shaft, exiting at the mount as a Universal Sonar 2 (US2) connector. If your display is a HELIX 12 or SOLIX, you have a complete sonar system without any external transducer pole or cable run. The tradeoff: you are locked into Humminbird displays for the integrated sonar.
Power-Stow Auto Deploy/Stow
The Ultrex Quest’s Power-Stow bracket deploys and stows the motor via an electric actuator — push a button on the i-Pilot remote or foot pedal. At the no-wake zone: press stow. At the first fishing spot: press deploy. No lifting a 30-lb motor in the dark at 5AM. Neither the Force Pro nor the Ghost X offers this at the same level of reliability.
24V/36V Dual Voltage in One SKU
The Quest runs at 24V or 36V from a single hardware SKU configured via the motor’s setup menu — no wiring changes, no hardware swap. Both the Force Pro and Ghost X ship in separate 24V and 36V SKUs. This is Minn Kota’s strongest engineering advantage in the category.
Runtime
Approximately 35–40% more runtime at mid-throttle compared to the previous brushed Ultrex on the same battery bank. On a 24V/200Ah LiFePO4 bank, expect 10–12 hours of mixed fishing at mid-throttle.
Best For: Humminbird HELIX/SOLIX users who want a fully integrated sonar + trolling motor system and value Power-Stow convenience. Shop the Ultrex Quest →
Garmin Force Pro — The LiveScope Integration Leader
AnchorLock GPS Integration
The Force Pro’s AnchorLock connects to Garmin ECHOMAP Ultra 2 and GPSMAP series displays with tight chart integration. AnchorLock positions appear as waypoints on your Garmin chart. You can drop an AnchorLock position by long-pressing on the chart, navigate the motor to a specific waypoint, and view all saved positions overlaid with sonar data. This level of integration is tighter than what Humminbird achieves with i-Pilot Link.
Integrated LiveScope Mount Arm
The Force Pro includes a first-party LiveScope transducer mount arm on the motor head — no aftermarket IPS bracket required. The mount orients the LVS34 correctly for Forward Mode or Down Mode without adjustment. For anglers who have committed to the Garmin ecosystem (ECHOMAP Ultra 2 + LiveScope Plus), the Force Pro is the cleanest complete rig.
Thrust and Voltage
Available in 57″, 52″, and 45″ shaft lengths. Maximum thrust: 57 lb at 12V, 80 lb at 24V, or 100 lb at 36V — three separate SKUs. Runtime improvement vs. original Force: approximately 30–35% at mid-throttle.
Best For: Garmin ecosystem users — ECHOMAP Ultra 2 or GPSMAP + LiveScope Plus. Shop the Force Pro →
Lowrance Ghost X — The ActiveTarget Integration Leader
Anchor+ GPS — Precision in Current
The Ghost X’s Anchor+ connects to the HDS PRO display via NMEA 2000. Tournament anglers who fish current-heavy river systems — ledge fishing on the Mississippi, lock pools on the Tennessee River — report Anchor+ holding precise position in conditions where competitors drift. The brushless motor’s faster response time to GPS correction inputs allows micro-adjustments that a brushed motor controller can’t match.
ActiveTarget 2 Integrated Mount
The Ghost X includes a first-party ActiveTarget 2 transducer mount clamp on the motor shaft. The LSS-2T mounts directly with no aftermarket hardware — similar to the Force Pro’s LiveScope mount advantage.
Thrust
Same thrust ratings as the Force Pro: 57 lb at 12V, 80 lb at 24V, 100 lb at 36V in separate SKUs. Runtime improvement vs. previous brushed Ghost: approximately 30–35% at mid-throttle.
Best For: Lowrance HDS PRO users, especially those fishing current and river environments. Shop the Ghost X →
Head-to-Head Comparison
| Feature | Minn Kota Ultrex Quest MEGA DI/SI | Garmin Force Pro | Lowrance Ghost X |
|---|---|---|---|
| Max Thrust | 112 lb | 57/80/100 lb (by voltage SKU) | 57/80/100 lb (by voltage SKU) |
| Voltage Options | 24V or 36V (single SKU) | 12V, 24V, or 36V (separate SKUs) | 12V, 24V, or 36V (separate SKUs) |
| Integrated Sonar | MEGA DI/SI (Humminbird US2) | None (LiveScope mount arm) | None (ActiveTarget 2 clamp) |
| Auto Stow/Deploy | Yes (Power-Stow) | No | No |
| GPS Anchor | i-Pilot Spot-Lock | AnchorLock | Anchor+ |
| Display Integration | Humminbird HELIX/SOLIX | Garmin ECHOMAP/GPSMAP | Lowrance HDS PRO/Live |
| Runtime vs. Brushed | ~35–40% improvement | ~30–35% improvement | ~30–35% improvement |
| Dual-Voltage SKU | Yes | No | No |
Which Brushless Motor Should You Buy?
Buy the Minn Kota Ultrex Quest MEGA DI/SI if: You run Humminbird HELIX or SOLIX displays, want the integrated MEGA DI/SI transducer to eliminate external sonar cable runs, need Power-Stow auto deploy/stow, or want dual-voltage flexibility and the highest thrust ceiling (112 lb) in the brushless category.
Buy the Garmin Force Pro if: You run Garmin ECHOMAP Ultra 2 or GPSMAP displays, run LiveScope Plus and want a first-party integrated mount, or value tight AnchorLock chart integration on the ECHOMAP/GPSMAP screen.
Buy the Lowrance Ghost X if: You run Lowrance HDS PRO displays, run ActiveTarget 2 and want the first-party mount, or fish current-heavy environments where Anchor+’s precision matters most.