🚗 Porsche 911 Targa 4S Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide

🔧 Vehicle Overview

The Porsche 911 Targa 4S combines open-top driving with AWD performance, delivering increased power and wider tyres compared to the Targa 4. With its rear-engine + AWD system and staggered setup, precise tyre selection is critical for handling, comfort, and drivetrain reliability.

📊 Factory Wheel & Fitment Specifications

🔩 Core Fitment Data (Targa 4S – All Generations)

• Bolt Pattern (PCD): 5×130

• Centre Bore: 71.6 mm

• Wheel Bolt Thread: M14 × 1.5

• Wheel Nut Torque: 160 Nm (118 ft-lb)

✅ Same specifications across 991 & 992 Targa 4S models

🛞 Factory Wheel Sizes & Offsets

🔹 Porsche 991 Targa 4S

🔹 Porsche 992 Targa 4S

📌 Targa 4S shares wheel specs with Carrera 4S models.

📏 Factory Tyre Sizes

🔹 Porsche 991 Targa 4S

• Front: 245/35R20

• Rear: 305/30R20

🔹 Porsche 992 Targa 4S

• Front: 245/35R20

• Rear: 305/30R21

📌 Wider rear tyres improve traction and performance.

⚙️ AWD Tyre Matching (CRITICAL)

The Targa 4S AWD system requires precise tyre matching:

✔ Same tyre brand front & rear
✔ Same tread pattern
✔ Similar tread depth (within 2–3mm)
✔ Correct rolling diameter

❌ Incorrect matching can cause:

• AWD system damage

• Transfer case wear

• Warning lights

⚙️ Recommended Tyres (Australia)

🔥 Best Daily Performance

• Michelin Pilot Sport 4S (N-rated)

• Continental SportContact 7

• Pirelli P Zero (PZ4 Porsche spec)

✔ Excellent wet & dry performance
✔ Perfect for AWD sports cars

🔇 Comfort Option

• Continental MaxContact MC7
  ✔ Lower noise
  ✔ Ideal for daily cruising
  ✔ Popular for Targa lifestyle use

🏁 High Performance / Track

• Michelin Pilot Sport Cup 2

• Pirelli Trofeo R

✔ Maximum grip
✔ Faster wear

⚙️ Aftermarket Upgrade Guide

✔ OEM+ Setup (Recommended)

• 245/35R20 + 305/30R20/21
  ✔ Maintains AWD system balance

✔ Comfort Setup

• Same size with touring tyre
  ✔ Reduced noise
  ✔ Improved ride comfort

✔ Performance Setup

• PS4S / SportContact 7
  ✔ Best all-round performance

⚠️ Critical Fitment Notes

• AWD requires perfect tyre matching

• Always replace tyres as a full set (recommended)

• Staggered setup = NO front-to-rear rotation

• Incorrect sizing affects:

  • AWD system

  • Porsche Stability Management (PSM)

• Always recommend N-rated tyres

🛠️ Torque & Installation Guide

• Torque Spec: 160 Nm

• Re-torque after 50–100 km

• Always use torque wrench

🏪 Why Choose Autosport Tyreworld?

At Autosport Tyreworld, we specialise in AWD Porsche 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