Mercury - Quicksilver 835272Q1 Flo-Torq II Hub Kit Yamaha 50-100HP Outboards 835272Q1. Overview. The Quicksilver 835272Q1 Flo-Torq II Hub Kit lets you run Mercury or Quicksilver propellers on your Yamaha 50-100HP outboard, giving you smoother operation and added drivetrain protection. The Flo-Torq II system is trusted by boaters worldwide for its ability to absorb shock loads, protect the lower unit, and still deliver full power to the water.. If you ever hit debris or experience a prop strike,