The new King F9 Speedback Irons from Cobra are finally here. They are packed full of technological advances that can only help your golf game. Their Speedback technology aims to increase clubhead speed, launch the ball higher, hit it further but at the same time give forgiveness for an off centre hit. All of this is done by lowering and moving the centre of gravity (CG) deeper into the head. A belt of steel wraps around the back of the iron and this is positioned just above the contact area on the sole which allows the CG to be moved.
A higher Moment of Inertia (MOI) is created by adding more weight in the heel/toe areas. This allows for more speed through the ball and therefore increased distance. It also creates more stability so forgiveness and accuracy are increased. The forged variable thickness clubface is lighter than standard and features thin pockets in the upper heel area which extends the sweet spot. The Pwrshell insert features a deep undercut sole design and a new internal speed channel which absorbs and then returns more energy to the ball for increased ball speed and a higher launch angle. There is a TPU and Acrylic foam in the cavity which improves sound and feel and lessens vibration at impact.