NEW Callaway Great Big Bertha 9*driver Diamana Blue S+ 60 S +125

So how did Callaway make this breakthrough? They optimized the multi-material chassis to generate more clubhead speed through aerodynamics and a wide range of weight classes to suit every swing type. Callaway also developed next gen R•MOTO technology that provides the structure for a thinner face which leads to high ball speeds on center and off-center hits. And they added Adjustable Perimeter Weighting on the perimeter of the head for ball flight and dispersion control with exceptional forgiveness.Simple Adjustability You can quickly slide the weight to any position you want on the track. And the Optifit hosel lets you choose from 8 different configurations to tune loft, lie, and face angle.Forgiveness and Control From Adjustable Perimeter WeightingThere’s a 10g sliding weight on the perimeter of the clubhead. We put it there to add stability, and you can slide the weight for more dispersion control to hit your drives on line. You have virtually unlimited draw and fade bias options, more additional draw bias than ever before, and you get all of this without sacrificing forgiveness.Optifit hoselThe Optifit hosel lets you choose from 8 different configurations to tune loft, lie, and face angle.High Ball Speed from Next Gen R•MOTO TechnologyTo get every last yard out of your driver, you need more speed. That’s why we put in our Next Gen R•MOTO Technology. It provides the structure for a thinner face, leading to high ball speeds on center hits and off-center hits too.Head Speed From Our Light, Stable, Multi-Material Chassis This is the best combination Callaway has ever had of an aerodynamic head shape and multi-material lightweight club design. It's the key to generating higher clubhead speed through aerodynamics and a wide range of weight classes available to suit every swing type, from 295 to 325g.