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A low profile, wide footprint driver that looks noticeably larger than its measured 460cc. An expanded CORTECH Chamber and 54 grams of back weighting combine to create Mizuno’s most stable ever driver, with exceptional straight-line performance across its wide, inviting clubface.
The ST MAX 230 driver unveils two new engineering enhancements to ensure that stability is backed with impressive ball speeds – a next generation CORTECH Chamber and new Bet rich LFS Ti clubface.
Delivering an impressive ball flight that stays on whatever line you set it.
"The goal of the ST-MAX project was to engineer the greatest MOI and performance from off centre strikes conceivable - but not sacrifice ball speed or make the profile too cumbersome to look at."
CHRIS VOSHALL / MIZUNO GOLF
A new lighter, faster face material – measuring 9% higher in tensile strength (compared to SAT2041) for a complex multi-thickness face geometry. First introduced on Mizuno’s 2024 Tour driver the ST-G 440cc.
Wide profile, massive 54g back weighting and 40% larger graphite composite for extreme twist resistance to off centre strikes and a straight, predictable ball flight.
4 degrees of adjustability.
Wide profile, massive 54g back weighting and 40% larger graphite composite for extreme twist resistance to off centre strikes and a straight, predictable ball flight.
A dense stainless steel weight with elastomeric TPU - taking stress from the clubface and creating an additional energy source. Lengthened in the ST MAX and shifted closer to the clubface to maintain ball speeds across a wider portion of the clubface.
A new lighter, faster face material - measuring 9% higher in tensile strength (compared to SAT2041) for a complex multi-thickness face geometry. First introduced on Mizuno's 2024 Tour driver the ST-G 440cc.
Possible through the additional stability and off centre performance of the ST MAX head.
4 degrees of adjustability.
4 degrees of loft adjustability to fine-tune look and trajectory.
| Model | Loft Range° | Lie Range | CC | USGA/R&A Length * |
| ST-MAX 230 9.5 | 7.5-11.5 | 59.0-62.0 | 460 | 45.75″ |
| ST-MAX 230 10.5 | 8.5-12.5 | 59.0-62.0 | 460 | 45.75″ |
| ST-MAX 230 12.0 | 10.0-14.0 | 59.0-62.0 | 460 | 45.75″ |
Dexterity:
ST-MAX 9.5 RH & LH
ST-MAX 10.5 & 12.0 RH Only
* Mizuno has recently changed its official measurement method to match the USGA / R&A standard. As a consequence our published club lengths are now 1/4 inch longer (when actual club length is unchanged).
Loft/Lie Adjustments
| Flex | Weight | Trajectory |
|---|---|---|
| S | 58g | Mid |
| R | 54g | Mid |
| Flex | Weight | Trajectory |
|---|---|---|
| X | 68g | Mid |
| S | 65g | Mid |
| Flex | Weight | Trajectory |
|---|---|---|
| R | 47g | High |
| R2 | 44g | High |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 64g | Low |
| X | 65g | Low |
| X | 78g | Low |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 69.5g | Low |
| X | 70g | Low |
| S | 79.5g | Low |
| X | 80g | Low |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| X | 89g | Low |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 65g | Mid |
| X | 65g | Mid |
| X | 77.5g | Mid |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 68g | Mid |
| X | 68g | Mid |
| S | 77.5g | Mid |
| X | 78.5g | Mid |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| X | 88.5g | Mid |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 59.5g | Mid-High |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 68g | Mid-High |
| X | 69.5g | Mid-High |
| X | 78g | Mid-High |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 65g | Mid-High |
| X | 75g | Mid-High |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| S | 64g | Mid-Low |
| X | 75g | Mid-Low |
| Flex | Weight | Trajectory |
|---|---|---|
| L | 43g | Mid-High |
| Flex | Weight | Trajectory |
|---|---|---|
| R | 55g | Mid-High |
| S | 57g | Mid-High |
| Flex | Weight | Trajectory |
|---|---|---|
| R | 64.5g | Mid |
| S | 66.5g | Mid |
| X | 68.5g | Mid |
| S | 72g | Mid |
| X | 74g | Mid |
| Flex | Weight | Trajectory |
|---|---|---|
| R | 39g | High |
| Flex | Weight | Trajectory |
|---|---|---|
| 5.5 | 54g | High |
| Flex | Weight | Trajectory |
|---|---|---|
| 5.5 | 58g | Low |
| 6.0 | 58g | Low |
| 6.5 | 59g | Low |
| Flex | Weight | Trajectory |
|---|---|---|
| 6.0 | 67g | Low |
| 6.5 | 69g | Low |
| Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 64g | Low |
| 6 | 64g | Low |
| 5.5 | 64g | Mid |
| Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 75g | Low |
| 6 | 75g | Low |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 64g | Low |
| 6 | 64g | Low |
| 5.5 | 64g | Mid |
Up Charge Shaft | Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 75g | Low |
| 6 | 75g | Low |
| Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 61g | Low |
| 6 | 61g | Low |
| Flex | Weight | Trajectory |
|---|---|---|
| 6.5 | 72g | Low |
| 6 | 72g | Low |
| Flex | Weight | Trajectory |
|---|---|---|
| F1 - Ladies | 43g | High |
| F2 | 45g | High |
| Flex | Weight | Trajectory |
|---|---|---|
| F4-S | 58g | Mid-High |
| F2-A | 57g | Mid-High |
| F3-R | 57g | Mid-High |
| Flex | Weight | Trajectory |
|---|---|---|
| F4-S | 66g | Mid |
| F3-R | 66g | Mid |
Test the ST Series alongside your current driver at your local Mizuno Swing DNA Fitter.
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