Mercury - Quicksilver 835257K12 Flo-Torq Reflex Hub Kit Mercury, Yamaha, Honda & Tohatsu Mid-Range Outboards 835257K12. Overview. The Quicksilver 835257K12 Flo-Torq Reflex Hub Kit delivers smooth performance and reliable drivetrain protection for a wide range of mid-horsepower outboards from Mercury, Yamaha, Honda, and Tohatsu. Built to absorb shock and vibration, this hub system cushions your prop shaft from damage while maintaining full torque transfer to the water.. Whether you're upgrading y