As the result of a 3-year driver development project, Mizuno now says it’s showtime with the new ST drivers. Their latest innovations include a new forged titanium face and carbon construction. Mizuno’s goal: potent ball speeds, greater distance, and satisfying feel on impact. Read on as the TGW review team takes you inside the new technology of Mizuno ST drivers.
Technology
The Mizuno ST-Z and ST-X drivers are made with a Forged SAT2041 beta titanium club face. That stands for Super Alloy Titanium, 20% Vanadium, 4% aluminum, 1% tin. This combination of materials and forged processing creates a face that has 17% more tensile strength and 8% more flexibility than the traditional industry standard 6-4Ti material. With its high-strength properties as a beta titanium, it maintains its characteristics and resists micro-fractures longer for an improved life cycle.
Mizuno also redesigned their multi-thickness CORTECH face. It has been refined in order to get maximum performance out of the beta titanium material it is constructed from. A multi-thickness design protects ball speed at impact points all across the club face. This version sees noticeable improvements in ball speed on shots hit low on the face.
The majority of Tour players who use Mizuno drivers said after last year’s models, they wanted more dense or solid feedback when they hit the golf ball. So Mizuno engineers spent a year working on the sound. The result is a more muted, powerful tone in the ST-Z and ST-X models.
Both drivers in the ST lineup featured an optimized Wave soleplate. The lighter sole design features a more compact Wave structure that is more forgiving and faster on shots hit low on the face.
The Mizuno ST-Z driver is made with what they call a Z-axis design. This driver is balanced with carbon composite on the sole with a deep central sole weight that creates a bias to produce straight-line ball flight with low spin. The ST-Z golf club also features a wide, low footprint with a neutral visual lie angle down by the golf ball.
The Mizuno ST-X driver features an X-axis design. This driver features an expanded carbon composite window located on the toe and a heel-located sole weight. These properties produce more reliable draw bias and make it easier to get the face closed at impact to reduce a slice. The ST-X golf club has a more compact profile with a slightly deeper back portion and a more upright visual lie angle at address.
Who It’s For
The Mizuno ST-Z driver is the players’ model. It is designed to produce a straight-line trajectory with low, efficient spin. These characteristics are best fit for skilled golfers with higher swing speed speeds.
The Mizuno ST-X driver is the game improvement option. Golfers who struggle with accuracy off the tee, specifically with a slice, will benefit from the carbon section in the toe and added weight in the heel designed to produce more draw bias.
Appearance
The Mizuno ST drivers feature a flat black crown made of carbon for a fast, sleek look down by the golf ball. There are minimal graphic designs for a focused style that reduces distractions. The two drivers do look a bit different at address. Mizuno’s ST-Z driver has a wider, lower footprint and looks neutral. The ST-X version is more compact and looks like it sits more upright at address.
Mizuno ST Driver Specs
Mizuno ST-Z Driver
Mizuno ST-X Driver
