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Revolutionary Speed With Built In Forgiveness
The new KING F9 S SPEEDBACK irons are packed with an impressive array of cutting-edge technologies designed to deliver unrivalled iron performance.
Traditionally, in game improvement irons, golfers had to choose between distance or forgiveness. In the new F9 S irons, COBRA engineers were able to deliver the ultimate combination of both through SPEEDBACK Technology. Mass is added low and back using a belt of steel that wraps around the back of the iron, creating a lower and deeper CG that maximizes ball speed, launch and carry distance. SPEEDBACK shaping strategically positions the weight belt just above the contact area on the sole to maintain the sole width of a conventional game-improvement iron.
To maximize performance, SPEEDBACK shaping allowed more mass to be added low and wide (out to the heel and toe) compared to a traditional iron. Also, up to a combined 33 grams of Tungsten were added to the heel and toe in the 5-7 iron, a material used in premium priced irons. These shaping improvements increase MOI by up to 10% in the long irons, creating more stability through higher inertia that results in substantial improvements in ball speed, distance, forgiveness, and even accuracy.
A progressive iron set, the long irons, mid irons and wedges are each designed with different groove shapes to deliver specific performance characteristics. CNC milled V-grooves in the 5-7 irons improve distance by reducing spin for increased distance and flight time, while U-grooves in the 8-PW optimize spin for improved control and accuracy. Tighter-spaced wedge grooves in the SW maximize spin and improve trajectory control for enhanced green side precision.
A high performance iron set, packed with technology, these KING F9 S Speedback Irons are fitted as standard with the popular KBS Tour 90 shaft that offers lighter weight performance with a mid-high ball flight for landing control.
