Epic Distance & Forgiveness
Callaway Great Big Bertha Epic series of drivers with Jailbreak technology
Callaway‘s new Great Big Bertha Epic series of Drivers, are a true paradigm shift in tour driver performance and are based on Callaway's innovative new Jailbreak Technology, which fundamentally changes how the head and clubface behave at impact to deliver more ball speed and distance.
At impact, a metalwood's face flexes and the crown bulges upward while the sole bulges downward. Jailbreak bars form a firm connection between the crown and sole to inhibit their flexing. That puts more of the load of impact on the face. Physicists call this "energy
lensing." In Epic, it promotes faster ball speed for more distance.
"Tour drivers typically emphasize the performance better players want most – speed, low spin and control
– at the expense of forgiveness," said Dr. Alan Hocknell, Callaway's senior vice president of R&D. "GBB Epic series combine tour performance and forgiveness to make it a breakthrough in driver engineering. Jailbreak Technology creates a new and remarkably efficient working relationship between the face, crown and sole to promote faster ball speed across more of the face to give the golfer more distance," said Hocknell.
Both Epic clubheads are made from One-piece Casting to minimize energy loss at impact and to create highest ball speed while conforming and keeping within the CT limit. Both heads have three-way carbon woven (Tri-
Axial) material on the crown and sole to allow more free weights placement on the heads. Tri-Axial carbon is lighter than Titanium and thinner than Forged Composite.
Epic Sub Zero has front and back adjustable weight (12g and 2g) to create Low or High spin control and an adjustable hosel. While the Epic Star has Perimeter weighting for CG Bias control, but a non-adjustable hosel. In summary, Epic Sub Zero is more a Low Spin Driver, and Epic Star is a Speed Driver.
Both clubhead speeds gets a boost from Callaway's Speed Step technology. Designed with the direction of aerospace experts, the Speed
Step, located on the crown, improves aerodynamics for more speed and distance, and a new improved Hyper Speed Forged Face Cup.
Standard shaft for both Epic drivers is the Speeder EVOLUTION. While
Sub Zero has the option of Tour AD TP-6, Speeder EVOLUTION III 661 or Diamana BF 60 as custom shafts, Star has option of Tour AD TP-5, Speeder EVOLUTION III 569 or Fubuki V as alternative choices.
In Summary, GBB Epic Drivers offer much more “distance” with their jailbreak technology and Speed Step Crown. Much more “forgiveness” with the Carbon Triaxial material crown and sole. And choice of 2 heads, Sub Zero to go further with spin control, or Star to go further with speed and CG bias control.
Callaway Golf also has a full line of complimentary GBB Epic Fairway Woods. The GBB Epic series drivers and fairway woods will be available in South East Asia beginning mid-March 2017.
Epic Star GBB
Epic Sub Zero