The Minn Kota Ultrex Quest 90/115 sits at the top of Minn Kota’s Quest range, and the spec sheet is genuinely different from the standard 80lb Quest models — not just a thrust bump. We’ve gone through what the extra investment actually buys you.
Dual voltage is the headline feature
Wire it for 24V and you get 90lb of thrust; wire it for 36V and it jumps to 115lb — the same motor, different battery bank. That flexibility matters if you’re not sure yet how big your battery bank will end up, or if you fish two different boats with different electrical setups.
Built-in sonar and Spot-Lock
Dual Spectrum CHIRP sonar is pre-installed in the motor head, so you get a second sonar source at the bow without running a separate transducer. GPS Spot-Lock holds position without touching the motor — genuinely useful when working a spot in current or wind, and it’s noticeably more precise than the entry-level Ultrex models in our testing.
Who should buy it
- Anglers upgrading from an older Terrova or basic Ultrex who want the latest GPS accuracy
- Anyone not yet committed to a 24V or 36V battery bank
- Tournament and serious weekend anglers who rely on Spot-Lock daily
If you mostly troll and rarely use GPS anchoring features, the standard 80lb Quest models remain excellent value and will save you money. See the full Minn Kota Ultrex Quest 90/115 Spot-Lock Trolling Motor, genuine stock with UK & Europe delivery and full manufacturer warranty.