This Minn Kota RTA-54 Composite Trolling Motor Quick Release Bracket is the best.  If you buy one of the smaller ones you're making a mistake.  I pulled this off a boat that I traded .  It had only been on the boat a short time. It is designed to fit the Riptide Ulterra, Terrova, and PowerDrive V2 Motors, making it a versatile and useful addition to your boat. Crafted from high-quality composite material, this bracket is durable and built to last.  Minn Kota. It weighs 3.2 kg and does not come with a warranty.  Thanks for looking