GF4

The Ultimate in Customization

4 Weight Ports with 7 Screw Options

Outstanding Workability

Available in RH Only

The GF-4 Driver by KZG stands at the forefront of customizable golf club technology, incorporating KZG’s advanced Gravitational Force (GF) system. This driver is meticulously engineered to offer unparalleled adjustability, ensuring that professional fitters can tailor its performance to the precise needs of each golfer.

Key Features

  1. Gravitational Force (GF) Technology:
    • Four Weight Ports: The GF-4 Driver features four strategically positioned weight ports. These ports are designed to accommodate various weight configurations that significantly influence the club’s performance characteristics.
    • Seven Weight Options: With seven distinct weight options available, ranging from light to heavy, the driver allows for a total of 196 unique weight configurations. This extensive adjustability empowers professionals to fine-tune aspects such as ball flight trajectory, center of gravity (CG) positioning, spin rates, and shot bias (fade or draw).
  2. Precision Performance Tuning:
    • Optimized Ball Flight: By adjusting the weights, fitters can manipulate the driver’s CG to promote desired launch angles and spin rates, optimizing ball flight for maximum distance and control.
    • Fade and Draw Bias Customization: The ability to shift weights towards the heel or toe allows for precise adjustments to encourage either a fade or draw bias, helping golfers correct common swing tendencies.
  3. Classic Pear-Shaped Design:
    • Aesthetic Appeal: The GF-4 Driver boasts a 425cc classic pear-shaped head, offering a traditional aesthetic that appeals to discerning players who appreciate timeless design.
    • Deep, Solid Feel: This design not only enhances visual appeal but also contributes to a deep, solid feel at impact, providing satisfying feedback that skilled golfers seek.
  4. Enhanced Workability:
    • Compact Head for Shot Shaping: The smaller, compact design of the GF-4 Driver enhances workability, allowing golfers to shape shots with precision when required. This is particularly beneficial for advanced players who desire greater control over their ball flight.
  5. Versatility for All Players:
    • Lightweight Configuration: The GF-4 can be configured to a very lightweight setting, making it an excellent choice for junior and lady golfers. This adaptability ensures that players of varying strengths and swing speeds can benefit from the driver’s advanced features.

The GF-4 Driver by KZG epitomizes the fusion of classic design and modern technology. Its Gravitational Force system offers an unprecedented level of customization, enabling professional fitters to tailor the driver’s characteristics to the unique swing dynamics of each golfer. Whether it’s optimizing launch conditions, adjusting spin rates, or customizing shot bias, the GF-4 provides the tools necessary for peak performance. Its traditional pear-shaped design coupled with enhanced workability makes it a preferred choice for players seeking both aesthetic appeal and precision. Furthermore, its ability to be configured for lightweight play broadens its suitability, catering to juniors, ladies, and players seeking a lighter setup. The GF-4 Driver stands as a testament to KZG’s commitment to delivering personalized performance and superior craftsmanship.

GF4

The Ultimate in Customization

4 Weight Ports with 7 Screw Options

Outstanding Workability

Available in RH Only

The GF-4 Driver by KZG stands at the forefront of customizable golf club technology, incorporating KZG’s advanced Gravitational Force (GF) system. This driver is meticulously engineered to offer unparalleled adjustability, ensuring that professional fitters can tailor its performance to the precise needs of each golfer.

Key Features

  1. Gravitational Force (GF) Technology:
    • Four Weight Ports: The GF-4 Driver features four strategically positioned weight ports. These ports are designed to accommodate various weight configurations that significantly influence the club’s performance characteristics.
    • Seven Weight Options: With seven distinct weight options available, ranging from light to heavy, the driver allows for a total of 196 unique weight configurations. This extensive adjustability empowers professionals to fine-tune aspects such as ball flight trajectory, center of gravity (CG) positioning, spin rates, and shot bias (fade or draw).
  2. Precision Performance Tuning:
    • Optimized Ball Flight: By adjusting the weights, fitters can manipulate the driver’s CG to promote desired launch angles and spin rates, optimizing ball flight for maximum distance and control.
    • Fade and Draw Bias Customization: The ability to shift weights towards the heel or toe allows for precise adjustments to encourage either a fade or draw bias, helping golfers correct common swing tendencies.
  3. Classic Pear-Shaped Design:
    • Aesthetic Appeal: The GF-4 Driver boasts a 425cc classic pear-shaped head, offering a traditional aesthetic that appeals to discerning players who appreciate timeless design.
    • Deep, Solid Feel: This design not only enhances visual appeal but also contributes to a deep, solid feel at impact, providing satisfying feedback that skilled golfers seek.
  4. Enhanced Workability:
    • Compact Head for Shot Shaping: The smaller, compact design of the GF-4 Driver enhances workability, allowing golfers to shape shots with precision when required. This is particularly beneficial for advanced players who desire greater control over their ball flight.
  5. Versatility for All Players:
    • Lightweight Configuration: The GF-4 can be configured to a very lightweight setting, making it an excellent choice for junior and lady golfers. This adaptability ensures that players of varying strengths and swing speeds can benefit from the driver’s advanced features.

The GF-4 Driver by KZG epitomizes the fusion of classic design and modern technology. Its Gravitational Force system offers an unprecedented level of customization, enabling professional fitters to tailor the driver’s characteristics to the unique swing dynamics of each golfer. Whether it’s optimizing launch conditions, adjusting spin rates, or customizing shot bias, the GF-4 provides the tools necessary for peak performance. Its traditional pear-shaped design coupled with enhanced workability makes it a preferred choice for players seeking both aesthetic appeal and precision. Furthermore, its ability to be configured for lightweight play broadens its suitability, catering to juniors, ladies, and players seeking a lighter setup. The GF-4 Driver stands as a testament to KZG’s commitment to delivering personalized performance and superior craftsmanship.

GF4 Club Specs

GF 4LLMLHLTol.
RH Loft (Degrees)10.5°12°± 1
Lie Angle (Degrees)585858± 1
Volume (CC)425425425± 5
Weight w/o screws (g)183183183± 5
Weight w/ neutral screws (g)198198198± 2
Roll/Buldge (inches)10.5/10.510.5/10.510.5/10.5± 1
Face Angle (Degrees)00.5 C1 C± .5
Face Height (mm)525252± 1
Face Width (mm)909090± 1
Face MaterialTi 6AL-4V
Crown MaterialTi 6AL-4V
Sole MaterialTi 6AL-4V
Face Thickness2.8 - 2.9mm
Hosel Depth (mm)38 ±1.0
Hosel ID (mm)8.6 ±0.05
Hosel OD (mm)13 ±0.2
ScrewsGF 4: Head comes in neutral
2 @ 1.5 g, 2 @ 6 g = 15 grams
Alternate Screws1.5, 4, 5, 6, 8, 10, 12 grams

What others are saying...

"For marginal players, this technology will be like the heavens opening up, but even better players will notice the difference right away, as well."

Fairways and Greens Magazine Editors Pick

“I had my son fitted for the GF 4 driver when he had outgrown his little junior set. He is now driving the ball better than he ever has and we are excited to see where he can go with his golf.”

Dan Gleason

“The GF 4 driver is fantastic for the advancing junior who is too strong to play with junior clubs but still needs a head with less weight. With four weight ports and 7 optional screw weights, it is very easy to fine tune the GF-4 to the players swing, giving them the most clubhead speed while maintaining mass in the head.”

Brad Whalen

“The GF 4 is the ultimate driver for extreme fitting. The head without screws is only 183 grams. You can add as little as 6 grams or as much as 48 grams to dial in the exact swing weight for any golfer.”

John Kelly

GF 4LLMLHLTol.
RH Loft (Degrees)10.5°12°± 1
Lie Angle (Degrees)585858± 1
Volume (CC)425425425± 5
Weight w/o screws (g)183183183± 5
Weight w/ neutral screws (g)198198198± 2
Roll/Buldge (inches)10.5/10.510.5/10.510.5/10.5± 1
Face Angle (Degrees)00.5 C1 C± .5
Face Height (mm)525252± 1
Face Width (mm)909090± 1
Face MaterialTi 6AL-4V
Crown MaterialTi 6AL-4V
Sole MaterialTi 6AL-4V
Face Thickness2.8 - 2.9mm
Hosel Depth (mm)38 ±1.0
Hosel ID (mm)8.6 ±0.05
Hosel OD (mm)13 ±0.2
ScrewsGF 4: Head comes in neutral
2 @ 1.5 g, 2 @ 6 g = 15 grams
Alternate Screws1.5, 4, 5, 6, 8, 10, 12 grams

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