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ST-G 440 Driver
Mizuno ST-G 230 Driver
ULTRA LOW SPIN. TOUR PERFORMANCE. TOTAL CONTROL.
The ST-G 230 is Mizuno’s most customizable driver, purpose-built for faster swingers and shot-makers who demand low spin and precision tuning. Compact and powerful, this player’s driver features a squat profile and pairs tour-level adjustability with the explosive ball speed benefits of Mizuno’s CORTECH Chamber.
Dual converging weight tracks allow golfers to fine-tune performance—create a low-spin bomber, a fade or draw bias, or simply maximize stability in a compact, confidence-inspiring chassis.
Key Benefits:
- 🔹 Ultra-Low Spin Design – built for penetrating ball flights
- 🔹 Dual Sliding Weight Tracks – fully adjustable for bias and forgiveness
- 🔹 CORTECH Chamber – enhances energy transfer for faster ball speeds
- 🔹 Compact Player Profile – smaller footprint with tour-preferred shape
- 🔹 Ideal For: Skilled players and faster swing speeds seeking total launch and spin control
Shape it. Flight it. Own it.
Schedule a Fitting for the ST-G 230 Driver
24 ST-G Driver Specification
| Model | Loft Range° | Lie Range | CC | USGA/R&A Length * |
| ST-G 9.5 | 7.5-11.5 | 57.5-60.5 | 440 | 45.25″ |
| ST-G 10.5 | 8.5-12.5 | 57.5-60.5 | 440 | 45.25″ |
Dexterity:
ST-G 9.5 RH & LH
ST-G 10.5 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).