20 Inch Porsche 911 991 991.2 Turbo S GTS Wheels
For the Porsche 911 (991 generation), the 20-inch wheels for the Turbo S and GTS are defined by one major feature: the Center Lock hub. While standard Carreras use a 5-lug pattern, these performance models use a single central nut, a technology derived directly from Porsche’s racing program
1. Key Specifications (991.1 vs. 991.2)
The 991.2 (2017–2019) introduced slightly different offsets and widths compared to the 991.1 (2014–2016) to accommodate the updated suspension and wider rear track.
| Specification | Front Axle | Rear Axle |
| Rim Size | $9\text{J} \times 20$ | $11.5\text{J} \times 20$ (Turbo S) / $12\text{J} \times 20$ (GTS) |
| Offset (ET) | $51\text{mm}$ | $56\text{mm}$ (Turbo S) / $63\text{mm}$ (991.2 GTS) |
| Tire Size | $245/35\text{ ZR20}$ | $305/30\text{ ZR20}$ |
| Hub Type | Center Lock | Center Lock |
2. Most Popular OEM Designs
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911 Turbo S Wheel (Standard): A forged alloy wheel with a distinct “star” spoke design, usually finished in two-tone (Black/Polished).
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Turbo Sport III (GTS Style): Often found on the 991.2 GTS, these feature a multi-spoke design finished in Satin Black or High Gloss Black.
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Exclusive Design: A five-spoke retro-inspired forged wheel (reminiscent of the Fuchs design) available through the Porsche Exclusive Manufaktur program.
3. Part Numbers for Reference
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Front (991.2 Turbo S/GTS):
991.362.721.00 -
Rear (991.2 Turbo S):
991.362.771.00 -
Rear (991.2 GTS):
991.362.771.01(Note the $12\text{J}$ width vs the Turbo S $11.5\text{J}$). -
Center Lock Nut (Black):
991.361.081.90
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