🚗 Porsche 911 Targa 4 Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche 911 Targa 4 combines iconic open-top design with all-wheel-drive (AWD) performance. Built on the Carrera 4 platform, it features staggered wheels and precision AWD systems, meaning correct tyre fitment is critical for both handling and drivetrain protection.
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (Targa 4 – 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 specifications across 991 & 992 Targa 4 models
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche 991 Targa 4
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x8.5 / 20x8.5 | ET49 |
| Rear | 19x11 / 20x11 | ET66 |
🔹 Porsche 992 Targa 4
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x8.5 / 20x8.5 | ET50 |
| Rear | 20x11 / 21x11.5 | ET67 |
📌 Targa models share wheel specs with Carrera 4 variants.
📏 Factory Tyre Sizes
🔹 Porsche 991 Targa 4
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Front: 245/40R19
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Rear: 295/35R19
Optional:
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245/35R20 (Front)
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305/30R20 (Rear)
🔹 Porsche 992 Targa 4
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Front: 235/40R19
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Rear: 295/35R20
Optional upgrade:
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245/35R20 (Front)
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305/30R21 (Rear)
⚙️ AWD Tyre Matching (CRITICAL)
The Targa 4 uses a Porsche AWD system, requiring precise tyre matching:
✔ Same tyre brand
✔ Same tread pattern
✔ Similar tread depth (within 2–3mm)
✔ Matching rolling diameter
❌ Incorrect setup can lead to:
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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 wet & dry grip
✔ Perfect for Adelaide driving
🔇 Comfort Option
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Continental MaxContact MC7
✔ Lower noise
✔ Ideal for daily cruising
✔ Great for Targa lifestyle driving
🏁 Performance / Spirited Driving
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Michelin Pilot Sport Cup 2
✔ Maximum grip
✔ Suitable for aggressive driving
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
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Maintain factory staggered sizing
✔ Best AWD compatibility
✔ Comfort Setup
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Same size with touring-performance tyre
✔ Reduced noise
✔ Improved ride comfort
✔ Performance Setup
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PS4S / SportContact 7
✔ Best balance for street + performance
⚠️ 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
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in AWD Porsche vehicles:
✔ Correct AWD tyre matching expertise
✔ Porsche-approved tyre options
✔ Premium brands: Michelin, Continental, Pirelli
✔ Precision balancing & performance alignment
📍 Visit Our Stores
AUTOSPORT TYREWORLD
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📞 0452 641 023
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📍 911 South Road, Clarence Gardens SA 5039
📞 0420 299 911