Key Information On Callaway’s GBB Epic Driver

Are you ready to take your game to epic status in 2017? New for the coming season is Callaway’s latest rendition of the Great Big Bertha driver: Epic. The GBB Epic truly lives up to the aforementioned “epic” name. The changes that Callaway has made to provide speed and distance in the clubhead and clubface for all golfers.

GBB Epic Jailbreak Technology

Callaway GBB Epic Jailbreak Technology

The new, patent-pending, Jailbreak technology dynamically changes how the crown, sole, and face behave. This new modernization features two 3-gram titanium bars behind the club face, connecting the crown and sole. The bars allow the face to absorb more impact load and transfer energy and speed to a larger portion of the clubface. As a result, ball speed and distance increase.

GBB Epic Clubhead

Callaway GBB Epic Clubhead

The club head is comprised of a titanium exo-cage design outfitted with strong, lightweight triaxial carbon composite panels in the crown and sole. Almost half of the club head’s surface area consists of this material. All of this technology adds up to create the lightest crown that Callaway had ever produced in a driver and pushed the club’s forgiveness to a new level of MOI.

GBB Epic Track System

Callaway GBB Epic Track System

The GBB Epic will also feature a redesigned adjustable rear weighting track system for ultimate shot shaping control, The new system allows the now heavier weight (17 grams) to deliver up to 21 yards of left-to-right directional correction. This range represents a 22% increase over last year’s Great Big Bertha drivers.

Familiar Features and Stock Options

Features carrying over from recent models include the Speed Step crown technology and Opti-Fit Hosel. The Speed Step crown boosts club head speeds by improving aerodynamics over the crown. As a result, you don’t have to swing harder to swing faster. The Opti-Fit hosel technology allows for loft adjustments of -1, +1 and +2 degrees from standard, so you can dial in your launch and spin.

The GBB Epic features four premium shafts as stock options, providing a range of speed, power, feel, and trajectory combinations for players. They include:

  • Project X HXRDUS T800 55 (Senior, R and S flex)
  • Fujikura Pro 62 Green (R, S, and X-flex)
  • Mitsubishi Diamana M+ Green (available in 40 with Senior or R-flex and 50 in stiff)
  • Aldila Rogue Max (available in 60R and S flex or 75 X-flex)

Loft options will include 9, 10.5 and a 13.5 HT with the standard length at 45.5”.  Left-hand stock options will be available for both the 9 and 10.5, but only in custom for the 13.5HT.


In addition to the normal Great Big Bertha Epic driver, there will be an Epic Sub Zero model.  The Sub Zero uses feedback from PGA Tour Pros in its design. It is Callaway’s lowest spinning driver, producing Tour-level distance, forgiveness, and performance.

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Chris Wadwick

Chris Wadwick has been a Class “A” member of the PGA of America since 2011. He is a graduate of UNC-Chapel Hill with a degree in Business Administration. He brings a deep understanding of the inner workings of the golf business, especially club fittings, product knowledge, and visual merchandising, working for Dick’s Sporting Goods for over 7 years and Occoneechee Golf Club for more than three years, prior to that. When he is not in the office, you can always find him at a nearby golf course, attending games at his alma mater, or spending time with his wife and four dogs.