Equipment
GolfWRX Launch Report: Mizuno ST-Z 230, ST-X 230 drivers, fairway wood, hybrid
What you need to know: The product of Mizuno’s Speed Technology (ST) Metalwood Project — four years of rapid-fire metalwoods development — 2023 Mizuno ST-Z 230, ST-X 230, and ST-PLTNM feature the centerpiece Cortech Chamber, within which a steel weight is positioned for increased ball speed and spin reduction. The technology extends to the ST-Z 230 fairway wood and hybrid as well.
Mizuno ST-Z 230, ST-X 230: What’s new, key technology
Cortech Chamber: Through slot provides additional COR area by providing sole flex filled with elastomeric TPU material for additional flexure and face stress reduction. Inside the TPU is a stainless steel weight, which is positioned close to the clubface for increased speed and spin reduction. Also contributes to a solid feeling at impact.
SAT 2041 Forged Beta Titanium Face: More flexible and stronger than 6-4 titanium.
Additional model details
ST-Z 230
- Billed as a “straight, stable, and low spinning” driver. Designed for stability on off-center hits.
- Engineers focused on positioning CG location being as close as possible to the Z-axis or neutral axis for lower spin, straight performance, and higher MOI.
- Forged SAT 2041 Beta Ti face, aided by the Cortech Chamber, enhances ball speed and reduces spin
- 14-gram back weight
- Shallower CG for a more penetrating ball flight
ST-X 230
- Billed as a “more workable, mild draw-biased” driver
- Higher spinning, higher launching than ST-Z 230
- Deeper CG and shorter CG distance for a balance of workability in both directions
- 14-gram heel weight
- Toe side composite for shorter CG to shaft axis distance
- More rounded, deeper profile
ST-X PLTNM 230
- An ultra lightweight driver for slower swing speeds
- High launching
- Draw biased
- The ST-X PLTNM is 30g lighter overall than any possible custom option of the ST-X 230
- High spec Helium Platinum Shaft and lightweight grip
What Mizuno says
“Our player testing over the years shows that placing extra weight close to the face results in faster ball speeds and low spin rates,” says David Llewellyn, Director of R&D for Mizuno. “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 won’t weld directly, which is where the TPU has a second role.”
More photos
ST-Z 230
ST-X 230
ST-Z 230 Fairway Wood
- A mid-low spinning, high launching, adjustable fairway wood
- Mid-sized and playable for all levels
- High energy MAS1C steel face boosted by Mizuno’s Cortech Chamber
- The carbon composite crown for a low center of gravity
- Quick Switch hosel offers 4 degrees of adjustability
ST-Z 230 Hybrid
- A mid-low spinning, high launching, adjustable hybrid
- High energy MAS1C steel face boosted by Mizuno’s Cortech Chamber
- Waffle crown, thick sole weight create a deep center of gravity for high launch
- With respect to the CLK, the ST-Z 230 is slightly larger
Price, specs, availability
Drivers
ST-Z
Availability: Right Hand – 9.5 and 10.5 degrees
Left hand – 9.5 degrees only
ST-X
Availability: Right Hand – 9.5, 10.5, and 12 degrees
Left hand – 9.5 degrees only
Fairway wood
Right Hand – 3 wood (15) and 5 wood (18)
Left hand – 3 wood (15)
Hybrid
Availability: Right Hand – 2H (16), 3H (19), 4H (22) and 5H (25)
Left Hand – 3H (19) and 4H (22)
Pricing
ST-Z 230 Driver / ST-X 230 Driver: $499.95
ST-Z 230 PLTNM Driver: $549.95
ST-Z 230 Fairway Woods: $299.95
At retail: February
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Equipment
Coolest thing for sale in the GolfWRX Classifieds (4/23/24): TaylorMade Qi10 Driver Ruby Red
At GolfWRX, we are a community of like-minded individuals that all experience and express our enjoyment of the game in many ways.
It’s that sense of community that drives day-to-day interactions in the forums on topics that range from best driver to what marker you use to mark your ball. It even allows us to share another thing we all love – buying and selling equipment.
Currently, in our GolfWRX buy/sell/trade (BST) forum, there is a listing for a TaylorMade Qi10 Driver Ruby Red.
From the seller: (@Gehly): “TaylorMade Qi10 Driver 9.0 Designer Series Ruby Red. Custom Mitsubishi Kai’li Red 60s (stiff) shaft, plays 46”. Great condition, head near mint (see pics). w/ Red/Black Golf Pride NDMC Midsize grip. No headcover for it. $545“
To check out the full listing in our BST forum, head through the link: TaylorMade Qi10 Driver Ruby Red
This is the most impressive current listing from the GolfWRX BST, and if you are curious about the rules to participate in the BST Forum you can check them out here: GolfWRX BST Rules
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Whats in the Bag
Sam Burns WITB 2024 (April)
- Sam Burns’ what’s in the bag accurate as of the RBC Heritage.
Driver: Callaway Paradym Triple Diamond S (9 degrees @10)
Shaft: Fujikura Ventus Blue 7 TX
3-wood: Callaway Paradym Ai Smoke Triple Diamond T (15 degrees @16)
Shaft: Fujikura Ventus Blue 8 X
Hybrid: Callaway Apex UW (21 degrees)
Shaft: Fujikura Ventus Blue 8 X
Irons: Callaway Apex TCB ’24 (4-AW)
Shafts: Project X 6.5 (4-PW), True Temper Dynamic Gold X100 Tour Issue (AW)
Wedges: Titleist Vokey Design SM10 (56-14F @55), WedgeWorks Proto (60-T)
Shafts: True Temper Dynamic Gold S400 Tour Issue (56, 60)
Putter: Odyssey Ai-One #7S
Grips: Golf Pride Tour Velvet Align
Ball: Callaway Chrome Tour X
Check out more in-hand photos of Sam Burns’ WITB in the forums.
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Whats in the Bag
Will Zalatoris WITB 2024 (April)
- Will Zalatoris’ what’s in the bag accurate as of the RBC Heritage.
Driver: Titleist TSR2 (9 degrees, A1 SureFit setting)
Shaft: Fujikura Ventus TR Black 7 X (44.5 inches)
3-wood: Titleist TSi2 (15 degrees, A1 SureFit setting)
Shaft: Fujikura Ventus TR Blue 8 X
Irons: Titleist T350 (3), Titleist T150 (4-PW)
Shafts: Nippon N.S. Pro Prototype G.O.S.T. 10 ST X (3), True Temper Dynamic Gold Tour Issue X100 (4-PW)
Wedges: Titleist Vokey Design SM10 (50-08F, 54-10S @55, 60-04T)
Shafts: True Temper Dynamic Gold Tour Issue X100
Putter: L.A.B. Golf Mezz.1 Max
Grips: Golf Pride Z-Grip Cord
See more photos of Will Zalatoris’ WITB in the forums.
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Scott
Jan 20, 2023 at 9:53 am
Fairways & hybrids are looking good. Shaft options are super limited – I guess that’s a payoff for a less than premium price point. Heads up to anybody that plans on building a separate shaft – Mizuno’s adapter has an off-center bore. If you find an adapter, it will look defective – that’s the design.
Justin
Jan 19, 2023 at 8:02 pm
Maybe the best looking hybrid I’ve ever seen
Tom K
Jan 19, 2023 at 1:43 pm
Drivers from the different manufacturers all have similar designs.