The set includes a 4mm flex shaft assembly and metal shaft support bracket, ensuring stable power transmission and reduced vibration during high-speed operation.

The flex shaft inner core measures 350mm, including a 75mm hardened shaft tip with 10mm thread, designed for secure propeller mounting.

The system also includes a 300mm brass tube liner, 300mm plastic liner, thrust washer, propeller dog, and bullet Nuts, forming a complete drive shaft assembly suitable for various RC boat builds.

The included shaft support bracket features a 4mm inner shaft diameter, with overall dimensions 51mm length and 45.5mm width, helping maintain alignment and reduce flex during operation.

This drivetrain set is widely used in RC mono hulls, racing boats, shrimp boats, and other high-performance RC model boats.