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You need reliable propulsion for your boat or paddleboard. We compared 2 best brushless trolling motors to find the right fit for your vessel. The KOETSU 70lb Brushless Trolling Motor takes the top spot because its 70 lb thrust and 24.3-pound weight make it ideal for paddleboards and small watercraft. Our picks are based strictly on the specifications published on the listings. This guide helps you decide which motor matches your boating needs.
Match sonar to your water type
Choose based on where you fish. The KOETSU model lacks sonar, making it a simple, lightweight option for paddleboards. The Minn Kota Ultrex includes Side Imaging, which is essential for freshwater anglers who need to see structure. Select the motor that aligns with your specific fishing environment and navigation needs.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | KOETSU 70lb Brushless Trolling Motor Best overall | paddleboards and small watercraft | |
| 2 | Minn Kota Ultrex QUEST 90/115 lb Best side imaging | Freshwater anglers needing side imaging |
The best fit for you
- You need a lightweight motor for paddleboards – KOETSU 70lb Brushless Trolling Motor – It weighs 24.3 pounds and offers 70 lb thrust for portable use.
- You want side imaging for freshwater fishing – Minn Kota Ultrex QUEST 90/115 lb – It features integrated side imaging sonar technology for precise control.
- You require a bow mount for stability – Minn Kota Ultrex QUEST 90/115 lb – It is designed as a bow mount unit for secure attachment.
KOETSU 70lb Brushless Trolling Motor
Best for: paddleboards and small watercraft
- Motor Type
- Brushless
- Thrust
- 70 lbs
- Shaft Length
- 76 cm
- Voltage
- 12V
- Water Type
- Freshwater or Saltwater
- Speed Control
- Stepless speed adjustment
This Koetsu 12V S130 motor uses a brushless design to deliver 70 lbs of thrust and 600 watts of power. It features a 76 cm telescopic aluminum shaft and stepless speed control for smooth operation up to 6 km/h. The unit weighs 24.3 pounds and works in both freshwater and saltwater. It suits paddleboarders and small boat owners who need portable, reliable propulsion without the bulk of larger systems.
- Brushless motor provides 600 watts of power and 1300 RPM
- Stepless speed control allows precise adjustment up to 6 km/h
- Telescopic 76 cm aluminum shaft adjusts for compact storage
- Operates in both freshwater and saltwater environments
- 70 lbs of thrust is lower than the 100+ lbs found on larger bow-mount options
- 24.3 pounds weight is heavier than many lightweight SUP motors
- 76 cm shaft length is shorter than standard 20+ inch trolling motor shafts
- You need a lightweight motor for a paddleboard or small craft
- You want stepless speed control for precise adjustments
- You require a motor that works in saltwater
- You need high thrust for heavy displacement boats
- You prefer a fixed shaft length for maximum stability
- You require a bow-mount configuration for a kayak or small boat
Verdict: Koetsu 12V S130 Brushless Motor offers portable propulsion for paddleboards and small watercraft. It fits users who prioritize lightweight design and saltwater compatibility over high thrust or bow-mount stability.
Minn Kota Ultrex QUEST 90/115 lb
Best for: Freshwater anglers needing side imaging
- Motor Type
- Brushless
- Thrust
- 90/115 lbs
- Shaft Length
- 52 in
- Mount Type
- Bow Mount
- Voltage
- 24/36V
- Control Type
- Foot Pedal
This Minn Kota Ultrex QUEST is a brushless bow-mount trolling motor designed for freshwater use. It offers 90 or 115 lbs of thrust and runs on 24 or 36V power. The integrated MEGA Side Imaging transducer provides clear underwater visualization up to 200 feet on either side. You get precise GPS Spot-Lock and Power Steering for controlled trolling. The 52-inch shaft fits standard boat transoms.
- Integrated MEGA Side Imaging up to 200 feet
- 90/115 lb thrust with 24/36V dual-voltage brushless motor
- GPS Spot-Lock and Power Steering for precise control
- Lift-Assist design reduces stow effort by half
- Bow mount limits placement to the front of the boat
- Freshwater only rating excludes saltwater use
- 52-inch shaft length may not suit taller boats
- You need advanced side imaging for structure detection
- You want precise GPS positioning for stationary fishing
- You prefer bow-mount control for better visibility
- You require a saltwater-rated motor
- You prefer a transom-mount configuration
- You need a shaft longer than 52 inches
Verdict: Minn Kota Ultrex QUEST 115 lb Bow-Mount delivers precise control and clear sonar for freshwater anglers who value spot-lock technology and integrated imaging.
Specifications side by side
| Spec | KOETSU 70lb Brushless Trolling Motor | Minn Kota Ultrex QUEST 90/115 lb |
|---|---|---|
| Thrust | 70 lbs | 90/115 lbs |
| Shaft Length | 76 cm | 52 in |
| Mount Type | – | Bow Mount |
| Voltage | 12V | 24/36V |
| Control Type | – | Foot Pedal |
| Water Type | Freshwater or Saltwater | Freshwater |
| Speed Control | Stepless speed adjustment | – |
| GPS Navigation | – | GPS, Spot-Lock |
| Sonar Technology | – | Side Imaging |
| Use | – | Trolling, Freshwater |
| Motor Type | Brushless | Brushless |
| Power Source | Electric | Electric |
| Weight | 24.3 pounds | – |
| Dimensions | – | 1 × 1 × 1 inches |
| Size | 12V S130 | 90/115 lb Thrust |
| Model | 12V S80 | 1368921 |
| Color | – | Black |
How to Choose the Right Brushless Trolling Motor
Match thrust to your craft
Thrust determines how much power the propeller generates. You need enough force to push your vessel through water resistance. The KOETSU model provides 70 lb thrust, which suits lightweight craft like paddleboards. Heavier boats or those with wind resistance require higher thrust ratings. Check the weight of your boat and the conditions you face. Select a motor with sufficient thrust to maintain control without overworking the battery. Insufficient power leads to slow speeds and poor maneuverability.
Check voltage requirements
Voltage indicates the electrical system the motor uses. Most portable motors run on 12V systems. The KOETSU 12V S130 operates on a standard 12V power source. This makes it compatible with many small battery setups. Higher voltage options exist for larger boats but require more complex wiring. Verify your existing battery capacity before purchasing. Ensure your power source can sustain the motor’s draw. Matching voltage ensures proper operation and prevents electrical issues during your trip.
Consider sonar integration
Sonar technology helps you locate fish and underwater structures. The Minn Kota Ultrex QUEST includes Side Imaging sonar. This feature is vital for freshwater anglers who need detailed views of the bottom. The KOETSU model lacks sonar, offering a simpler setup. Decide if you need visual data while trolling. Integrated sonar adds weight and complexity but improves fishing success. If you prioritize lightweight portability, skip sonar. If you need precision, choose a model with imaging capabilities.
Evaluate mount type
Mount type affects stability and maneuverability. Bow mounts offer stability for larger boats. The Minn Kota Ultrex QUEST features a bow mount design. This setup keeps the motor centered for precise tracking. Portable models like the KOETSU are often hand-held or transom-mounted. Choose a mount that fits your vessel’s design. Bow mounts require specific installation points. Portable options offer flexibility for small craft. Your choice depends on where you fish and how you operate your boat.
Assess weight and size
Weight impacts portability and ease of use. The KOETSU motor weighs 24.3 pounds, making it manageable for one person. Smaller size facilitates storage and transport. The Minn Kota Ultrex QUEST is larger due to its bow mount and sonar. Consider how you will carry and store the motor. Lighter motors are better for paddleboards and kayaks. Heavier motors provide more stability for larger boats. Measure your storage space and physical capability to ensure the motor fits your needs.
Frequently asked questions
What is the difference between brushless and brushed trolling motors?
Brushless motors use electronic commutation instead of physical brushes. This design reduces friction and wear, leading to longer lifespan and quieter operation. You get more consistent power delivery with less maintenance. The KOETSU and Minn Kota models in this list both use brushless technology for reliable performance.
How much thrust do I need for a small boat?
Thrust measures the propeller's pushing force. For lightweight craft like paddleboards, 70 lb thrust is sufficient. The KOETSU 70lb model provides this exact amount. Larger boats require more thrust to overcome water resistance. Always match the thrust rating to your vessel's weight and size for effective propulsion.
Can I use a brushless trolling motor in saltwater?
Yes, many brushless models are built for saltwater use. The KOETSU 70lb motor is explicitly noted for saltwater compatibility. Its construction resists corrosion from brackish and ocean environments. Check the manufacturer's specifications to ensure your chosen motor handles the specific water conditions you plan to fish in.
What is side imaging sonar on a trolling motor?
Side imaging sonar scans the water to the left and right of your boat. It creates detailed images of underwater structures and fish. The Minn Kota Ultrex QUEST includes this feature for freshwater anglers. It helps you locate hotspots without stopping your trolling path, improving your fishing efficiency significantly.
Is a bow mount better than a transom mount?
Bow mounts offer better stability and steering precision. They allow you to keep your hands free for fishing while the motor steers. The Minn Kota Ultrex QUEST is a bow-mount model. Transom mounts are easier to install but may be less stable in rough water. Choose based on your vessel type.
How heavy is a portable trolling motor?
Portable motors are designed for easy transport. The KOETSU 70lb model weighs 24.3 pounds. This weight makes it manageable for carrying onto paddleboards or small boats. Heavier bow-mount units are less portable but offer more power. Consider your carrying needs when selecting between portable and permanent installations.
What voltage do brushless trolling motors use?
Most portable brushless motors run on 12V systems. The KOETSU 12V S130 operates on this standard voltage. Higher thrust models may require 24V or 36V systems for adequate power. Ensure your battery matches the motor's voltage requirement to avoid performance issues or electrical damage to your setup.
