Quick Scan: Callaway’s GBB Epic Sub Zero Driver

Callaway Golf Company recently announced the introduction of its new Great Big Bertha Epic Sub Zero Driver, calling it a “true paradigm shift in tour driver.”

Said Dr. Alan Hocknell, Callaway’s senior vice president of R&D, in the press release, “Tour drivers typically emphasize the performance better players want most – speed, low spin and control. GBB Epic Sub Zero’s combination of tour performance and forgiveness make it a breakthrough in driver engineering.”

After nearly a month of build up and hype, the Epic line of Great Big Berthas go on sale this week. Here’s a quick scan on the new clubs from Callaway.

Jailbreak Technology

Epic Sub Zero’s power is based on Callaway’s innovative new Jailbreak Technology which changes how the head and clubface behave at impact – delivering more more ball speed and distance.

  • Current Technology: At impact, a metalwood’s face flexes and the crown bulges upward while the sole bulges downward.
  • Jailbreak Solution: Jailbreak’s bars form a connection between the crown and sole to inhibit their flexing which puts more of the load of impact on the face.
    • Physicists call this “energy lensing.”
    • Relative to Epic, it promotes faster ball speed for more distance.

“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.

Clubhead: Strong, Light Composite With On-Demand Customization

Epic Sub Zero’s clubhead consists of Callaway’s aerospace-grade titanium Exo-cage outfitted with a crown and sole panels made of triaxial carbon, an extraordinarily light and strong composite material developed by Callaway.

  • A full 50 percent of the head’s surface area consists of triaxial carbon.
  • The crown weighs just 10.8g, the sole panels just 7.4g.
  • The weight saved is strategically re-positioned to create Epic Sub Zero’s extraordinarily high MOI (or Moment of Inertia), which measures a full 40% higher than the Big Bertha 816 Driver.
  • Two interchangeable weights (12g and 2g) positioned at the front and back of the sole, which can be used in tandem with the Optifit hosel, give players the ability to adjust the spin-rate, the launch angle and MOI.

Speed & Distance: Aerospace Experts-Approved

Head speed gets a boost from Callaway’s Speed Step technology.

  • Designed with the direction of aerospace experts.
  • Speed Step technology is located on the crown.
  • Improves aerodynamics for more speed and distance.

Look & Sound: Tour-Inspired

Engineers focused on shape, aesthetics and acoustics to make Epic Sub Zero look great, sound great, and perform great.

  • Sleek professional Tour-inspired shape.
  • Green highlights create a dynamic appearance from every angle.

The Skinny

Company: Callaway Golf
Name: Great Big Bertha Epic Sub Zero Driver
Shafts: 4 Premium, Tour-proven stock graphite shafts
Lofts: 9° (adjustable 8° – 11°), 10.5° (adjustable 9.5° – 12.5°), 13.5° (adjustable 12.5°- 15.5°)
Retail Date Release: January 27, 2017
SRP: $499

Credit: Callaway Golf


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