StingRay XRIII Hydrofoils with the best hydrodinamic efficiency for racing applications. Endowed with Tunnel-Prop technology used on off-shore boats which increases thrust while reduces friction factor at minimum. Made of hydrophilic water-absorbing material that eliminates friction. No-drill installation. Fixing socket width 180 mm.
-Increase thrust and top speed.
-Plane in half the time.
-Stabilize the boat.
-Reduce chinewalking and porpoising.