Minn Kota Ultrex QUEST 90/115 Trolling Motor with Dual Spectrum CHIRP – 45"

For anglers who demand the precision of cable steering without sacrificing modern GPS technology, the Minn Kota Ultrex QUEST 90/115 sets the benchmark. Built for serious bass, walleye, and multi-species anglers, Ultrex combines the instant responsiveness of a traditional cable-steer trolling motor with Minn Kota's most advanced QUEST brushless platform.

Designed to operate on either a 24V or 36V battery system, the dual-voltage QUEST motor delivers up to 90 pounds of thrust on 24 volts or 115 pounds on 36 volts, giving anglers exceptional flexibility while providing more torque, longer runtime, and quieter operation than previous generations.

The programmable heel-toe foot pedal delivers the immediate steering response tournament anglers expect, while advanced GPS features like Spot-Lock with Jog, Drift Mode, AutoPilot, and One-Boat Network integration help maintain precise boat control in changing wind and current.

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Why Choose Ultrex QUEST?

Most retailers describe Ultrex as just another GPS trolling motor. It isn't. The biggest reason tournament anglers choose Ultrex over fully electric-steer motors is because it feels like a traditional cable-steer motor — with GPS features added on top, not the other way around.

Unlike Ulterra, which focuses on maximum automation with Auto Stow & Deploy and Power Trim, or Terrova, which emphasizes electric steering, Ultrex is built around control. That distinction matters on tournament day.

• Responsive cable steering — the defining feature
• QUEST brushless platform for more torque and longer runtime
• Advanced GPS navigation (Spot-Lock, Drift Mode, AutoPilot)
• Spot-Lock with Jog for precise repositioning
• Dual-voltage 24V/36V operation
• Programmable heel-toe foot pedal
• Lift-Assist mount
• One-Boat Network compatibility
• Dual Spectrum CHIRP sonar
• Legendary tournament-proven steering feel

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Best For

Ultrex QUEST is purpose-built for anglers who fish with precision and compete at the highest level.

• Tournament bass anglers
• Walleye anglers
• Multi-species anglers
• Reservoir fishing
• Offshore ledges
• Grass lines
• Boat docks
• Timber
• Rock piles
• Precision casting situations

The 45-inch shaft is best suited to bass boats and other lower-profile freshwater fishing boats where a shorter shaft provides excellent prop depth without unnecessary length.

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Cable Steering — The Defining Feature of Ultrex

Ask any tournament angler why they chose Ultrex and the answer is almost always the same: it steers like a cable motor. That's not an accident — it's the entire design philosophy.

Cable steering delivers instant response the moment your foot moves. There's no lag, no interpolation, no electric motor translating your input. The connection between your foot and the prop is direct, mechanical, and immediate — exactly what anglers have relied on for decades of tournament fishing.

That muscle memory matters. When you're making a precision cast to a dock piling or repositioning on a ledge in current, you don't want to think about your trolling motor. Ultrex lets you fish on instinct.

• Instant steering response with zero lag
• Natural cable-steer feel anglers already know
• Precise boat positioning for tight-quarters fishing
• Tournament-preferred steering feel
• Reduced cognitive load — steer by feel, not by thought

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QUEST Brushless Technology

The QUEST platform is Minn Kota's most advanced motor architecture ever developed. Every component has been redesigned from the ground up to deliver more performance with greater durability.

• Increased torque — more pulling power at all speed settings
• Quieter operation — brushless design eliminates motor noise that spooks fish
• Better efficiency — more runtime per charge than previous generations
• Dual-voltage flexibility — run 24V for 90 lbs or 36V for 115 lbs from the same motor
• Reinforced mount — engineered for larger, heavier boats
• Redesigned prop — improved thrust and weed resistance
• Improved durability — built for extreme freshwater fishing conditions

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Spot-Lock with Jog

Minn Kota's legendary GPS anchoring holds your exact position automatically — compensating for wind, current, and wave action without any input from you.

Use Jog to reposition your Spot-Lock location in precise 5-foot increments from the Micro Remote. When the fish are tight to a specific piece of structure, Jog lets you dial in your position without re-anchoring.

Perfect for holding on:

• Offshore ledges and drop-offs
• Brush piles and timber
• Rock piles and riprap
• Boat docks
• Current seams
• Deep structure

Learn more in our Spot-Lock Technology Guide.

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Dual Spectrum CHIRP Sonar

The integrated Dual Spectrum CHIRP transducer delivers outstanding traditional sonar performance when connected to a compatible Humminbird fish finder.

• Excellent fish arches and target separation
• Crisp bottom detail and structure identification
• Superior performance in deep water
• Clean, protected transducer installation — no separate transducer to mount
• Compatible with Humminbird HELIX and APEX units via One-Boat Network

Who should choose Dual Spectrum CHIRP instead of MEGA Side Imaging? This version is ideal for anglers who primarily use traditional 2D sonar, already own a Live Sonar unit, don't need integrated Side Imaging, or want the best possible fish separation and bottom detail without the added cost of MEGA imaging.

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Programmable Heel-Toe Foot Pedal

Most competitors barely mention the foot pedal. We think it's one of the most important features on any trolling motor — and Ultrex QUEST's programmable heel-toe pedal is the best in the category.

• Customizable buttons — assign GPS functions to the positions that make sense for your fishing style
• Cable-steer feel — direct mechanical connection for instant response
• Integrated GPS controls — activate Spot-Lock, AutoPilot, and Drift Mode without reaching for a remote
• Reduced hand movement — keep your hands on the rod, not the remote

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Specifications

Specification	Details
Thrust	90 / 115 lbs
Voltage	24V / 36V Selectable
Shaft	45"
Water Type	Freshwater
Steering	Cable-Steer with Power Assist
Spot-Lock	Yes — with Jog
Drift Mode	Yes
AutoPilot	Yes
Sonar	Dual Spectrum CHIRP
Remote	Micro Remote Included
Foot Pedal	Programmable Heel-Toe
Lift Assist	Yes
One-Boat Network	Compatible
Motor Platform	QUEST Brushless
Warranty	3-Year Limited

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What's Included

• Minn Kota Ultrex QUEST Trolling Motor
• Micro Remote
• Programmable Heel-Toe Foot Pedal
• Integrated Dual Spectrum CHIRP Transducer
• Lift-Assist Mount
• Mounting Hardware
• Owner's Manual and Documentation

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Also Available — Ultrex QUEST Family

Need a different shaft length or sonar option? Explore the full Ultrex QUEST lineup:

• Ultrex QUEST 90/115 | Dual Spectrum CHIRP | 52" Shaft
• Ultrex QUEST 90/115 | Dual Spectrum CHIRP | 60" Shaft
• Ultrex QUEST 90/115 | MEGA Down Imaging | 45" Shaft
• Ultrex QUEST 90/115 | MEGA Down Imaging | 52" Shaft
• Ultrex QUEST 90/115 | MEGA Down Imaging | 60" Shaft

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Frequently Asked Questions

Why choose Ultrex instead of Ulterra?

Ultrex is designed for anglers who prefer the immediate response of cable steering while still benefiting from advanced GPS features like Spot-Lock and AutoPilot. Ulterra focuses on maximum automation with Auto Stow & Deploy and Power Trim — it's the right choice if you want the motor to do everything for you. Ultrex is the right choice if you want to stay in control.

Why choose Dual Spectrum CHIRP over MEGA Side Imaging?

Dual Spectrum CHIRP is ideal for anglers who primarily use traditional 2D sonar, already own a Live Sonar unit, don't need integrated Side Imaging, or want excellent fish separation and bottom detail. If you fish open water, deep structure, or rely heavily on traditional sonar, CHIRP is the better fit. If you fish shallow flats, grass, or need to see what's beside the boat, consider the MEGA Side Imaging version.

Is the 45-inch shaft right for my boat?

The 45-inch shaft is best suited to bass boats and lower-profile freshwater fishing boats with standard bow heights. It provides excellent prop depth for most freshwater applications without unnecessary shaft length. If you fish from a taller boat or in rough water conditions, consider the 52" or 60" shaft. See our Ultrex Shaft Length Guide for detailed recommendations.

Does Ultrex QUEST include Power Trim?

No. Power Trim is a feature of the Ulterra QUEST, not Ultrex. Ultrex uses a Lift-Assist mount for manual deployment and retrieval. If Power Trim is important to your fishing setup, the Ulterra QUEST may be a better fit.

What batteries do I need?

For 24V operation (90 lbs thrust), use two 12V deep cycle batteries. For 36V operation (115 lbs thrust), use three 12V batteries. We recommend lithium for maximum runtime and minimum weight. See our Battery Guide for complete recommendations.

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Complete Your Setup

Our marine specialists can help you select the right battery system, onboard charger, quick-release bracket, and compatible Humminbird electronics for your boat.

• Minn Kota RTA-55 Quick Release Bracket
• Minn Kota RTA-62 Quick Release Bracket
• ABYSS 36V Lithium Battery Kit with Onboard Charger
• ABYSS 36V Lithium Battery – Bluetooth Edition

Browse all Minn Kota Trolling Motors or explore Learning Center guides to build the right system for your boat.

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