🏁 Porsche 911 S/T (992) Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche 911 S/T (992) is one of the most exclusive modern Porsche models, combining GT3 RS lightweight engineering with GT3 Touring drivability. Designed for pure driver engagement, it features:
Need tyres for your Porsche 911 S/T in Adelaide?
Autosport Tyre World Magill can help confirm the correct tyre size, load rating, wheel fitment and alignment needs before you order.
Call Magill: 0452 641 023 Get fitted tyre quote View tyres Book wheel alignment
Tyre options and fitment help for Porsche 911 S/T
Use these links to check available tyre options by size. If you are unsure which size suits your exact model, send us your tyre placard photo before ordering.
| Size / service | Best use | Shop or search | Fitment check |
|---|---|---|---|
| 255/35R20 | Performance, comfort and upgrade options | View 255/35R20 tyre options | Check fitted availability |
| 315/30R21 | 4WD, touring, AT/HT tyre options | View 315/30R21 tyre options | Check fitted availability |
| Wheel alignment | Recommended after tyre or wheel changes | Wheel alignment Adelaide | Call Magill |
✔ Naturally aspirated 4.0L engine
✔ Manual gearbox
✔ Lightweight construction
✔ Track-capable chassis with road usability
Tyre selection is critical, as the S/T relies heavily on mechanical grip and precision handling.
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (911 S/T – 992)
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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 (5-stud): 160 Nm
⚠️ Most S/T models use centre-lock wheels
→ Requires special Porsche torque tool
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche 911 S/T (992)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x9.5 | ET46 |
| Rear | 21x12 | ET50 |
📌 Same wheel architecture as GT3 Touring / GT3, optimised for lightweight performance.
📏 Factory Tyre Sizes
🔹 OEM Tyre Setup
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Front: 255/35R20
-
Rear: 315/30R21
📌 High-performance staggered setup for maximum grip and balance.
⚙️ Recommended Tyres (Australia)
🏁 Factory / Track-Focused (PRIMARY)
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Michelin Pilot Sport Cup 2 (N-rated)
✔ Maximum dry grip
✔ OEM-style performance
🔥 Street + Performance (Recommended for Most Owners)
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Michelin Pilot Sport 4S
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Continental SportContact 7
✔ Better wet grip
✔ More usable for road driving
🔇 Comfort Option (Limited Use)
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Continental MaxContact MC7 (not typical but possible)
✔ Lower noise
✔ Improved comfort
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
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255/35R20 + 315/30R21
✔ Maintains Porsche tuning
✔ Street Performance Setup
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PS4S / SportContact 7
✔ Best balance of comfort + performance
✔ Track Setup
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Cup 2
✔ Maximum grip
⚠️ Critical Fitment Notes
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S/T is rear-wheel drive (RWD)
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Staggered setup = NO front-to-rear rotation
✔ Track tyres require:
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Proper warm-up
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Correct tyre pressure management
❌ Incorrect tyres will:
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Reduce handling precision
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Affect braking and balance
✔ Always recommend N-rated tyres
🛠️ Torque & Installation Guide
🔧 5-Stud Wheels
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Torque: 160 Nm
🔧 Centre-Lock Wheels (Most S/T Models)
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Requires special Porsche tool
-
Torque significantly higher (manufacturer spec required)
✔ Re-torque after 50–100 km
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in rare and high-performance Porsche models:
✔ GT3, S/T & RS tyre 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
Need tyres or wheel alignment for your Porsche 911 S/T in Adelaide?
Send us your tyre size, vehicle model or tyre placard photo and the team at Autosport Tyre World Magill will confirm suitable options, availability and fitted advice.
Autosport Tyre World Magill: 647 Magill Road, Magill SA 5072. Phone 0452 641 023.
Call Magill Get fitted tyre quote View tyres Wheel alignment Adelaide