Answer engine summary
What should Adelaide drivers know about Porsche 911 Targa 4 GTS Tyre Size Guide | AWD Wheel Specs, PCD 5x130, Torque?
Adelaide drivers should match tyre choice, wheel fitment and service timing to the vehicle placard, actual driving use and local conditions. Hot SA roads, wet winter braking, Adelaide Hills corners and country touring can all affect tyre wear, grip and comfort, so professional fitment, pressure setup, balancing and wheel alignment matter as much as the Michelin product choice itself.
🚗 Porsche 911 Targa 4 GTS Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche 911 Targa 4 GTS blends open-top luxury with GTS-level performance and AWD traction. Positioned above the Targa 4S, it features wider rear tyres, sport-tuned suspension, and higher-performance tyre compounds, making correct tyre selection critical for both performance and drivetrain reliability.
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (Targa 4 GTS – All Generations)
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Bolt Pattern (PCD): 5×130
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Centre Bore: 71.6 mm
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Wheel Bolt Thread: M14 × 1.5
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Wheel Nut Torque: 160 Nm (118 ft-lb)
✅ Same across 991 & 992 Targa 4 GTS models
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche 991 Targa 4 GTS
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x8.5 | ET49 |
| Rear | 20x11 | ET66 |
🔹 Porsche 992 Targa 4 GTS
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x8.5 | ET50 |
| Rear | 21x11.5 | ET67 |
📌 GTS models may come with centre-lock wheels (optional) and lightweight alloys.
📏 Factory Tyre Sizes
🔹 Porsche 991 Targa 4 GTS
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Front: 245/35R20
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Rear: 305/30R20
🔹 Porsche 992 Targa 4 GTS
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Front: 245/35R20
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Rear: 305/30R21
📌 Factory tyres are typically Michelin PS4S or optional Cup 2 (track-focused).
⚙️ AWD Tyre Matching (CRITICAL)
The AWD system requires precise tyre matching:
✔ Same tyre brand front & rear
✔ Same tread pattern
✔ Similar tread depth (within 2–3mm)
✔ Correct rolling diameter
❌ Incorrect tyre combinations can cause:
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AWD system damage
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Transfer case wear
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Warning lights
⚙️ Recommended Tyres (Australia)
🔥 Best Daily Performance
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Michelin Pilot Sport 4S (N-rated)
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Continental SportContact 7
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Pirelli P Zero (PZ4 Porsche spec)
✔ Excellent grip in all conditions
✔ Ideal for AWD performance
🏁 Track / GTS Driving
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Michelin Pilot Sport Cup 2
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Pirelli Trofeo R
✔ Maximum grip
✔ Faster wear
🔇 Comfort Option (Daily Driving)
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Continental MaxContact MC7
✔ Lower noise
✔ Better comfort
✔ Suitable for non-track drivers
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
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245/35R20 + 305/30R20/21
✔ Maintains AWD system balance
✔ Comfort Setup
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Same sizes with touring tyre
✔ Reduced noise
✔ Longer lifespan
✔ Performance Setup
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PS4S / SportContact 7
✔ Best balance of performance + durability
⚠️ Critical Fitment Notes
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AWD requires perfect tyre matching
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Always replace tyres as a full set (recommended)
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Staggered setup = NO front-to-rear rotation
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Incorrect sizing affects:
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AWD system
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Porsche Stability Management (PSM)
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Always recommend N-rated tyres
🛠️ Torque & Installation Guide
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Torque Spec: 160 Nm
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Re-torque after 50–100 km
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Always use torque wrench (essential for Porsche wheels)
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in Porsche AWD performance vehicles:
✔ Correct AWD tyre matching expertise
✔ Porsche-approved tyre options
✔ Premium brands: Michelin, Continental, Pirelli
✔ Precision balancing & performance alignment
📍 Visit Our Stores
AUTOSPORT TYREWORLD
📍 647 Magill Road, Magill SA 5072
📞 0452 641 023
📍 411 Grand Junction Road, Wingfield SA 5013
📞 0433 645 411
📍 911 South Road, Clarence Gardens SA 5039
📞 0420 299 911
FAQ
Is Porsche 911 Targa 4 GTS Tyre Size Guide | AWD Wheel Specs, PCD 5x130, Torque relevant for Adelaide drivers?
Yes, if the advice is matched to the vehicle and how it is driven. City commuting, hills roads, country trips and performance use can all need different tyre and setup priorities.
Should tyre advice include wheel alignment?
Yes. Alignment, balancing and pressure setup are important because even a quality tyre can wear poorly or feel ordinary if the vehicle setup is wrong.
Can Autosport Tyre World help compare Michelin options?
Yes. Autosport Tyre World can compare suitable tyres, wheels and service options across Magill, Clarence Gardens and Wingfield, then recommend a setup for the vehicle's actual use.
Helpful Adelaide tyre links
Autosport Tyre World Adelaide locations
For local tyre advice, fitment checks, balancing and wheel alignment in Adelaide, contact Autosport Tyre World across Magill, Clarence Gardens and Wingfield.
TYREPLUS Magill | Autosport Tyre World Magill
647 Magill Road, Magill SA 5072
Phone: 0452 641 023
TYREPLUS Clarence Gardens | Autosport Tyre World Clarence Gardens
911 South Road, Clarence Gardens SA 5039
Phone: 0420 299 911
TYREPLUS Wingfield | Autosport Tyre World Wingfield
411 Grand Junction Road, Wingfield SA 5013
Phone: 0433 645 411
Adelaide Porsche fitment and safety note
For Porsche 911 Targa 4 GTS Tyre Size Guide | AWD Wheel Specs, PCD 5x130, Torque, confirm the exact Porsche model year, front and rear tyre sizes, wheel width, offset, load rating and speed rating before ordering tyres or changing wheels. Many Porsche fitments are staggered, and small changes can affect steering feel, stability systems, tyre clearance and road legality.
Adelaide drivers should also match the tyre choice to real use. A weekend Hills car, daily commuter, spirited road car and occasional track-day Porsche can need different priorities for cold grip, wet braking, heat resistance, noise, ride comfort and tread life.
Before fitting tyres, check existing wear patterns, tyre age, sidewall condition, pressures, wheel balance, alignment and suspension condition. Uneven inner-edge wear, vibration or tramlining can point to setup issues that should be fixed before new tyres are fitted.
Autosport Tyre World Magill can help confirm Porsche tyre fitment, compare suitable Michelin, Pirelli, Bridgestone, Continental, Hankook or Yokohama options, and complete fitting, balancing and wheel alignment checks for Adelaide performance cars.