Callaway GBB Epic Sub Zero Driver

By Paul Liberatore

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Published:

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Last Updated:

I know you are asking yourself, why do you have two reviews of the same club, this being the Callaway Epic Driver and the Callaway Epic Sub Zero Driver. While they may look very similar and have many of the same characteristics, they are in fact totally different clubs.

See the all new Epic line has two models, the “standard” which is the Epic, and the Sub Zero, which was specifically designed for golfers who create a lot of spin. See low spin drivers have historically been smaller in volume, have a lower moment of inertia, and are fade biased. These types of clubs were specifically designed for low handicap players with a higher swing speed. The new Callaway Epic Sub Zero Driver breaks this trend and is different, by that it gives the player the best of both worlds. The Callaway Epic Sub Zero Driver incorporates both the Jailbreak and Exo-Cage technology found in the Epic Driver, which gives players more distance and speed, while moving the center of gravity on the club to the neutral line “hence the name Sub Zero”. By moving the center of gravity to the zero line, the Callaway Epic Sub Zero generates the same moment of inertia as the standard Epic but creates about 500 RPM less, thereby making it easier for amateur players to use the club.


Since it was first released in early 2017, the Cobra Sub Zero Driver has not only received the highest rating of Gold in the 2017 Golf Digest Hot list, but it has also become one of the most recognized clubs used on the tour. This mainly has to do with Callaway’s new Jailbreak Technology which solves the problem of the crown and sole separating as the club face is stretched vertically at impact. This separation results in a loss of energy transferring to the ball. So, does the Jailbreak Technology work, yes absolutely, and is why the Callaway Epic Sub Zero Driver is perfect for the mid to high handicap golfer looking to have better control of the ball, less spin, and overall improve their accuracy when on the tee box.

Key Features

The Callaway Epic Sub Zero Driver provides greater distance from its Jailbreak Technology. This innovative design changes how the club head behaves at impact, which helps to promote more speed across a larger area of the club face.

The Callaway Epic Sub Zero Driver provides maximum forgiveness, high launch, and low spin from the innovative combination of its titanium Exo Cage and triaxial carbon construction.

The Callaway Epic Sub Zero Driver does not have the same perimeter weighting system as the standard Epic model, rather it has two interchangeable weight that allow for spin rate adjustment up to 250-350 RPM less than the Epic driver.

Design and Technology

The Callaway Epic Sub Zero Driver combines the very best in technology and design. The marquee of the Callaway Epic Sub Zero Driver is its Jailbreak Technology. This technology is made up of the structure found behind the club face that is made up of two parallel titanium rods that connect the sole to the crown. These titanium rods help to stiffen the crown and sole, so they don’t flex as much at impact. It is this separation that results in a loss of energy that transfers to the ball. With this technology the Callaway Epic Sub Zero Driver can create more energy to the ball on impact that produces more distance and ball speed.

The Callaway Epic Sub Zero Driver also incorporates the impressive Exo Cage Construction. This construction allows for Callaway to integrate more carbon fiber into the design of the clubhead, which helps the Jailbreak Technology to really shine through.

Where the standard Callaway Epic Driver and the Sub Zero are vastly different is in its weight system. The Callaway Epic Sub Zero Driver does not have the same perimeter weighting track as the standard Epic model, rather it has two weight ports that exist in the front and back of the sole. Through the use of a 2 and 12 gram weight “screw” that comes standard with the Callaway Epic Sub Zero Driver, players can move the center of gravity of the club forward to reduce spin or rearward to improve consistency.

Callaway GBB Epic Sub Zero Driver


The Callaway GBB Epic Sub Zero Driver is a high-performance driver designed for golfers seeking a more penetrating ball flight and increased forgiveness. Featuring Jailbreak Technology, which connects the crown to the sole with two internal bars to generate faster ball speed, and a lightweight triaxial carbon crown to reduce weight and increase MOI.
The Sub Zero model also includes interchangeable weights (12g and 2g) to adjust swing weight and CG location, and a more compact head size to reduce spin and promote a more penetrating ball flight, making it an excellent choice for golfers seeking a more controlled and accurate drive.


PROS

  • Impressive distance regardless of where you hit the ball on the club face
  • Sound at impact is much more muted than other drivers
  • Jailbreak Technology expands the sweet spot of the club and delivers high ball speeds

CONS

  • Some players might get overwhelmed with all the adjustability settings
  • Not much launch if you have a moderate swing speed
  • Some golfers may think that the club is a little light than what they are used to using

Our Experience

The Callaway GBB Epic Sub Zero driver is a high-performance golf club that has received positive reviews from golfers. According to the product review on WiscoGolfAddict, the driver has an excellent feel of the face that everyone needs to experience. 


The Replay Golf website also lists the Callaway GBB Epic Sub Zero driver as one of the used Callaway drivers, indicating it is a popular model. Additionally, in a video review by Rick Shiels, the Callaway GBB Epic Sub Zero driver is compared to the newer Callaway Rogue driver, suggesting it is a well-regarded club in the Callaway lineup.3 Overall, the search results indicate the Callaway GBB Epic Sub Zero driver is a quality driver that provides a great feel and performance for golfers.

Frequently Asked Questions

What Are the Specific Adjustments That Can Be Made With the Interchangeable Weights in the Head of the Callaway Great Big Bertha Epic Sub Zero Driver?

I can adjust the weight in the head of my Callaway Great Big Bertha Epic Sub Zero driver to customize performance. The interchangeable weights allow me to fine-tune spin rate and launch angle, which enhances my overall game.

How Does the Triaxle Carbon Crown Contribute to the Overall Performance of the Driver?

The triaxle carbon crown of the driver significantly improves its performance. The aerodynamic design and weight distribution enhance stability and increase swing speed. This innovative technology translates to more distance and accuracy, making it a game-changer for golfers.

Can the Callaway Great Big Bertha Epic Sub Zero Driver Provide Both Distance and Forgiveness on Off-Center Hits?

Yes, the Callaway Great Big Bertha Epic Sub Zero Driver can provide both distance and forgiveness on off-center hits. The innovative technology and adjustable weights in the club head contribute to improved distance control and forgiveness, while promoting increased club head speed.

What Are the Advantages of Using a Titanium Exo-Cage in the Construction of the Driver?

Using a titanium exo-cage in the construction of the driver provides advantages like durability, allowing for weight adjustments and customization. This promotes better performance, increased swing speed, and distance, catering to individual playing styles.

Are There Any Specific Drawbacks or Limitations to Be Aware of When Using the Callaway Great Big Bertha Epic Sub Zero Driver?

Honestly, there aren’t any major drawbacks or limitations with the Callaway Great Big Bertha Epic Sub Zero Driver. With its adjustable weights for fine-tuning performance, this driver offers exceptional forgiveness and distance.

Conclusion

The Callaway Epic Sub Zero Driver was one of the most successful drivers of 2017, and it is easy to see why. With loads of adjustability, full customization, and a modern design the Callaway Epic Sub Zero Driver is truly an outstanding club. The Callaway Epic Sub Zero Driver is perfect for the mid to high handicap golfer looking for more forgiveness, accuracy, and distance when on the when on the tee box.

Paul Liberatore

Paul Liberatore

As the Founder of Golfers Authority Paul Liberatore Esq. has spent the last 7+ years writing about the best golf equipment or instruction from the top golf instructors in the world. He has been a contributing writer for Sports Illustrated Golf and GolfWRX. After graduating with honors from Purdue University, he realized that he had a passion for the golf business and the law. When he's not practicing law, or creating golf content on YouTube, he can be found on his syndicated Behind the Golf Brand podcast talking with the most prolific leaders in the golf industry. 

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