Mercury - Quicksilver 835257Q12 Reflex Hub Kit 40-60HP Outboards 835257Q12. Overview. When you run in shallow water or around debris, the Quicksilver 835257Q12 Reflex Hub Kit helps protect your outboard from those unexpected knocks. Designed for 40-60HP outboards, this hub cushions the drivetrain, reduces vibration, and keeps your prop spinning smooth even after a minor hit.. The Reflex system acts like a buffer between your propeller and lower unit, absorbing impact instead of passing it throug