Porsche Cayman GT4 Tyre Size Guide | Wheel Specs, PCD 5x130, Torque | Autosport Tyreworld

🏁 Porsche Cayman GT4 Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide

🔧 Vehicle Overview

The Porsche Cayman GT4 is a track-focused variant of the Cayman, engineered with GT3-derived suspension, aerodynamics, and braking systems. Available in 981 GT4 (2015–2016) and 718 GT4 (2019+), it delivers:

✔ Motorsport-level handling
✔ Naturally aspirated flat-six performance
✔ Precision-focused chassis tuning

Tyres are critical, as the GT4 relies heavily on mechanical grip and track-ready performance.

📊 Factory Wheel & Fitment Specifications

🔩 Core Fitment Data (Cayman GT4)

• Bolt Pattern (PCD): 5×130

• Centre Bore: 71.6 mm

• Wheel Bolt Thread: M14 × 1.5

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

⚠️ Some GT4 models (Clubsport variants) may use centre-lock wheels

🛞 Factory Wheel Sizes & Offsets

🔹 Porsche Cayman GT4 (981)

🔹 Porsche 718 Cayman GT4

📌 Wider setup on 718 GT4 for increased grip

📏 Factory Tyre Sizes

🔹 Cayman GT4 (981)

• Front: 245/35R20

• Rear: 295/30R20

🔹 Cayman GT4 (718)

• Front: 245/35R20

• Rear: 295/30R20

📌 Same tyre sizes across both generations

⚙️ Recommended Tyres (Australia)

🏁 Track-Focused (Factory Style)

• Michelin Pilot Sport Cup 2 (N-rated)

✔ Maximum dry grip
✔ OEM-style performance

🔥 Street + Track Balance (Most Popular)

• Michelin Pilot Sport 4S

• Continental SportContact 7

✔ Better wet grip
✔ Suitable for daily driving

🏁 Maximum Track Performance

• Michelin Cup 2 R

✔ Extreme grip
✔ Track-only performance

🔇 Comfort Option (Limited Use)

• Continental MaxContact MC7 (not typical for GT4)
  ✔ Lower noise
  ✔ Better ride comfort

⚙️ Aftermarket Upgrade Guide

✔ OEM+ Setup (Recommended)

• 245/35R20 + 295/30R20
  ✔ Maintains factory balance

✔ Track Setup

• Cup 2 / Cup 2 R
  ✔ Maximum performance

✔ Street Setup

• PS4S / SportContact 7
  ✔ Best all-round use

⚠️ Critical Fitment Notes

• GT4 is mid-engine → extremely sensitive to tyre balance

• Staggered setup = NO front-to-rear rotation

✔ Track tyres require:

• Proper warm-up

• Pressure monitoring

❌ Incorrect tyres will:

• Reduce cornering grip

• Affect braking and stability

✔ Always recommend N-rated tyres

🛠️ Torque & Installation Guide

• Torque Spec: 160 Nm

Centre-Lock (if equipped):

• Requires special tool

• Higher torque (manufacturer spec required)

✔ Re-torque after 50–100 km

🏪 Why Choose Autosport Tyreworld?

At Autosport Tyreworld, we specialise in GT-level Porsche fitment:

✔ Cayman GT4 & GT3 expertise
✔ Porsche-approved tyre options
✔ Premium brands: Michelin, Continental, Pirelli
✔ Precision balancing & performance alignment

📍 Visit Our Stores

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