It took four years of rapid-fire development and worldwide tour usage to raise Mizuno metalwoods from the shadows of our iconic irons.  Now, after multiple iterative developments for stability, sound, and spin, we’ve added exceptional ball speeds to our performance equation.  Introducing the CORTECH Chamber. 

Mizuno’s CORTECH Chamber encases a stainless-steel weight with elastomeric TPU – taking stress from the clubface and creating an additional energy source.  At the same time locating weight closer to the clubface to reduce spin rates.  While contributing to a more solid, powerful sensation at impact.

“Our player testing over the years shows that placing extra weight close to the face results in faster ball speeds and low spin rates.  We’ve been steadily working towards the CORTECH Chamber, which is incredibly effective at that job.  Encasing the steel weight within the TPU Chamber means that we’re moving weight close to the face at the same time as creating an additional source of energy.  Steel is twice the density of Titanium, but is not weldable – so the TPU has a second role of securing the weight.”-

- David Llwelleyn, Mizuno R&D

ST-Z 230 is a straight flight driver with excellent stability from off centre hits.  Similar in look and character to the previous ST-Z. Ideal for players seeking straight line, stable and low spinning ball flight.

“Tour tests for the ST-Z 230 have all been very consistent – firstly, an appreciation that the look is familiar at address.  Then satisfaction at how much better it feels off the face.  Ball speeds are up on average 2-5mph with spin rates dropping around 200 rpm.”

- Chris Voshall, Mizuno Club Engineer

FEATURES:

• CORTECH CHAMBER
  The missing piece: Mizuno’s CORTECH Chamber encases a dense stainless-steel weight with elastomeric TPU – taking stress from the clubface and creating an additional energy source.  At the same time locating weight closer to the clubface to reduce spin rates.  While contributing to a more solid, powerful sensation at impact.
• FORGED SAT 2041 BETA TI FACE
  More resilient than commonly used 6-4 Ti, with more complex multi-thickness design – made possible by Mizuno’s CORTECH Chamber.
• UNIFIED SOLE COMPOSITE
  Carbon sole plate now a single piece to allow weight to be pushed to the extremes for overall stability.
• STRAIGHT FLIGHT BIAS
  Mass spread evenly to encourage a highly stable, straight ball flight.
• MODERN PLAYERS PROFILE
  Pushed lower to the ground for low / mid spin performance and aligns square to open.
• QUICK SWITCH HOSEL
  4 degrees of adjustability.

WRENCH TOOL INCLUDED
Yes

HEADCOVER INCLUDED
Yes

STANDARD GRIP
Lamkin ST Hybrid 360

WARRANTY
1 Year Manufacturer’s Warranty