The CALLAWAY® Big Bertha driver is back, and she's ready to rock your game. The Alpha model ups the ante with revolutionary Gravity Core technology, which allows you to adjust spin independently of launch angle. Choose your loft and lie options with the adjustable hosel, then select the directional bias (Draw or Neutral) with movable weights in the crown. Put it all together, and you've got the most advanced CALLAWAY® driver yet.
Hyper Speed titanium face is faster and thinner than previous models for increased ball speed, more forgiveness, and a 10% larger sweet spot
Gravity Core lets you adjust vertical CG (and therefore spin) independently of launch angle
Adjustable perimeter weights for Draw or Neutral shot shapes
Advanced adjustable hosel lets you adjust the loft (+2 and -1 degrees) and lie angle (draw or neutral) for optimal launch and spin conditions
Forged composite crown weighs just 8 grams; creates a deeper CG and lower spin
Mitsubishi Rayon® Fubuki Zeta Tour graphite shaft with mid-low torque and mid-high kick point; stiff flex
Loft: 9.0 degrees; adjustable +2 and -1 degrees from starting point