🏁 Porsche 911 GT2 RS Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche 911 GT2 RS is one of the most extreme road-legal Porsche models ever built. Unlike Turbo models, it is rear-wheel drive (RWD) with massive power output, requiring ultra-high-performance tyres to maintain traction and stability.
With over 700+ HP (991 GT2 RS), tyre selection is critical for safety, braking, and acceleration control.
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (GT2 RS – All Generations)
-
Bolt Pattern (PCD): 5×130
-
Centre Bore: 71.6 mm
-
Wheel Bolt Thread: M14 × 1.5
-
Wheel Nut Torque (5-stud): 160 Nm
⚠️ Most GT2 RS models use centre-lock wheels
→ Requires special Porsche torque tool
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche 997 GT2 RS
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x9 | ET47 |
| Rear | 19x12 | ET51 |
🔹 Porsche 991 GT2 RS
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x9.5 | ET50 |
| Rear | 21x12.5 | ET48 |
📌 GT2 RS uses extremely wide rear wheels for traction under high power.
📏 Factory Tyre Sizes
🔹 Porsche 997 GT2 RS
-
Front: 245/35R19
-
Rear: 325/30R19
🔹 Porsche 991 GT2 RS
-
Front: 265/35R20
-
Rear: 325/30R21
📌 Rear tyres are extra wide (325 section) to handle extreme torque.
⚙️ Recommended Tyres (Australia)
🏁 Track-Focused Tyres (PRIMARY)
-
Michelin Pilot Sport Cup 2 R (N-rated)
-
Michelin Pilot Sport Cup 2
-
Pirelli Trofeo R
✔ Maximum grip
✔ Designed for high-speed stability
🔥 Street + Performance (Limited Use)
-
Michelin Pilot Sport 4S
✔ Better wet grip
✔ More usable on road
⚠️ Comfort Tyres (NOT SUITABLE)
-
Touring tyres (MC7 etc.)
❌ Not suitable for GT2 RS
❌ Cannot handle power safely
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
-
Maintain factory sizing
✔ Critical for safety
✔ Track Setup
-
Cup 2 R
✔ Maximum traction
✔ Street Setup (Limited)
-
PS4S
✔ Only for daily-driven vehicles
⚠️ Critical Fitment Notes
-
GT2 RS is RWD with extreme power
-
Requires maximum rear grip
-
Staggered setup = NO front-to-rear rotation
❌ Incorrect tyres will:
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Cause wheel spin under acceleration
-
Reduce braking stability
-
Compromise handling
✔ Always use N-rated tyres
🛠️ Torque & Installation Guide
🔧 5-Stud Wheels
-
Torque: 160 Nm
🔧 Centre-Lock Wheels (Most GT2 RS)
-
Requires special tool
-
Higher torque (manufacturer-specific)
✔ Re-torque after 50–100 km
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in supercar tyre fitment:
✔ GT2 RS tyre expertise
✔ Porsche-approved tyres available
✔ Premium brands: Michelin, Pirelli, Continental
✔ High-speed 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