Manufacturers / Mizuno / GT180 Driver / Adapter settings
Adapter settings, decodedMizuno GT180 Driver adapter settings chart
The GT180 Driver uses the Mizuno Quick Switch (ST200 Series) adapter (Mizuno connector system), Quick Switch (GT180/ST180 2018, ST190/ST190G 2019, ST200/ST200X/ST200G 2020, ST-G 220/ST-X/ST-Z 2021, ST-X 220/ST-Z 220 2022).
Values apply to right-handed heads. Left-handed mappings differ for some systems; consult the manufacturer's left-handed chart.
Interactive adjustment guide
Enter your head's stated loft, then pick a position to decode it, or pick a loft change to see which positions get you there.
| Position | Loft | Lie | Face angle | Notes |
|---|---|---|---|---|
| STANDARDFactory | std | std | square | Factory ship setting (Mizuno's own STANDARD position on the adaptability chart). |
| STANDARD/LOWER-1 | -1.125° | +0.75° | 1.5 open | Intermediate position on Mizuno's adjustability wheel between STANDARD and LOWER; not individually named by Mizuno. |
| LOWER | -2.25° | +1.5° | 3 open | Label taken verbatim from Mizuno's chart. Maximum lower-loft setting. |
| LOWER/UPRIGHT-1 | -1.125° | +2.25° | 1.5 open | Intermediate position on Mizuno's adjustability wheel between LOWER and UPRIGHT; not individually named by Mizuno. |
| UPRIGHT | std | +3° | square | Label taken verbatim from Mizuno's chart. Same stated loft as STANDARD but 3 degrees more upright. |
| UPRIGHT/HIGHER-1 | +1.125° | +2.25° | 1.5 closed | Intermediate position on Mizuno's adjustability wheel between UPRIGHT and HIGHER; not individually named by Mizuno. |
| HIGHER | +2.25° | +1.5° | 3 closed | Label taken verbatim from Mizuno's chart. Maximum higher-loft setting. |
| HIGHER/STANDARD-1 | +1.125° | +0.75° | 1.5 closed | Intermediate position on Mizuno's adjustability wheel between HIGHER and STANDARD; not individually named by Mizuno. |
GT180 (2018) predates the registered adapter by two years but vendor fits-lists show one interchanging Quick Switch part spans this whole era. GolfWorks bb9072 (https://www.golfworks.com/the-golfworks-jpx-850-shaft-adaptor/p/bb9072/) states "Fits ST-190G, JPX, GT180 and ST180 drivers." Golf Shafts America (https://golfshaftsamerica.com/products/mizuno-driver-adaptors-aftermarket) lists "compatible with Mizuno PX-850, JPX-900, GT-180 ST-180 Driver." Already-cited ShaftConnect listing groups "ST-180 & GT-180" under the same SKU as ST200/ST-X 230/ST-Z 230. Adjustable hosel itself (Quick Switch, 7.5-11.5 deg loft range, 3 deg lie) confirmed by equipment press (GolfWRX "Mizuno's new, super-adjustable GT-180 driver," Today's Golfer GT180 review). Classified to nearest registered predecessor adapter per convention; no evidence of a non-interchanging distinct part.
Compatible shafts: what fits this head
Settings from Mizuno ST200 Driver Product Page.
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