Mizuno ST-Z 230 Driver Review (NEW for 2023)

The ST-Z 230 is the new driver from Mizuno for 2023

The Mizuno ST-Z 230 will be released in early 2023.

Mizuno ST-Z 230 Driver

The new Mizuno ST-Z 230 driver has been unveiled with the latest generation set for release in early 2023.

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Launched along with the ST-X 230, the two drivers replace the 220 drivers series as Mizuno’s leading range.

The new ST-Z 230 has been added to the USGA conforming list and is being put through its paces with heavy testing on tour before the driver goes on sale in 2023.

What Mizuno says about the ST-Z 230 driver:

“The USGA has approved and added Mizuno’s 2023 drivers to its conforming list.

“The new ST-Z and ST-X 230 drivers are now eligible to play on tour.

Mizuno ST-Z 230 Driver
The driver is on the USGA Conforming list

“The ST-Z was being heavily tested at the Mizuno supported British Challenge in St Mellion. Both Mizuno’s OJ Farrell and Marco Penge are believed to have taken the new drivers away after successful testing.”

RELATED: Review of the Mizuno ST-X 230 Driver
RELATED: Review of the Mizuno ST-G 220 Driver

Mizuno ST-Z 230 Driver Specs & Design

Little is being given away by Mizuno when it comes to the design tweaks and changes from the ST-Z 220 to the new 230 model.

One key change appears to be the addition of a Cortech Chamber in the sole of the ST-Z 230 compared to its predecessor with this element like to be designed to enhance ball speeds across the face.

Mizuno ST-Z 230 Driver

The Cortech CT ribs in the 220 version were all about delivered a higher speed and the new Chamber seems to have been created with the same intent. It could well replace Mizuno’s wave sole on the base of the club head.

The ST-Z 230 will once again have a Titanium face, while the weight looks set to remain balanced via heel and toe weighting.

The 220 driver was high in MOI and this model could well push that even higher for even more forgiveness from the tee box.

Mizuno ST-Z 230 Driver

Mizuno have typically offered this model in 9.5 and 10.5 lofts with four degrees of adjustability (7.5-11.5 and 8.5-12.5).

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Verdict: Is the Mizuno ST-Z 230 driver any good?

It is a wait and see question. From the initial looks, there isn’t a great deal of difference between the 220 and 230 models, but the proof is the testing.

Mizuno’s team have added a Cortech Chamber to this model in search of increasing ball speeds and remaining competitive in the driver space.

It will be interesting to see how much the gains actually are when the wraps come off this driver.


When is the Mizuno ST-Z 230 driver being released?

The ST-Z 230 release date has been set as early 2023 by Mizuno once testing is finalised.

How much does the Mizuno ST-Z 230 driver cost?

The cost of the driver has yet to be revealed but it is expected to be sold for around £400 / $550.

Does the Mizuno ST-Z 230 driver come with warranty?

All clubs come with a one year manufacturer’s warranty as standard from Mizuno.