Holden Commodore VN (1988–1991) Tyre Size & Wheel Specs (PCD, Centre Bore 69.5, Offset, Torque) | Adelaide

The 1988–1991 Holden Commodore VN marked a major redesign of the Commodore lineup, introducing a wider body, improved suspension, and the widely used 3.8L V6 engine.

This generation remains popular across Australia for budget builds, daily driving, and V8 conversions. Understanding the correct tyre sizes, wheel specs, PCD, centre bore, and offset is essential for safe fitment and performance.

At Autosport Tyreworld Magill, Wingfield & Clarence Gardens, we regularly service VN Commodores including Executive, S, SS, Berlina and Calais.

OEM Tyre Sizes (All Variants)

Based on factory data cross-referenced with Wheel-Size:

• 185/75R14 (Base models)
• 205/65R15 (Most common setup across range)
• 215/60R16 / 225/55R16 (Higher trim levels)
• 235/45R17 (SS / performance models)

OEM Wheel (Rim) Specifications

Typical OEM specs:

• 14x6 ET43–48
• 15x6 ET43–48
• 16x7 ET43
• 17x8 ET40–43

Factory examples:

• 14” steel wheels on base models
• 15” alloy wheels on Calais
• 16–17” on SS variants

Bolt Pattern (PCD)

• 5x120

Standard across VN Commodore and continues through VP, VR, VS, VT, VX, VY and VZ generations.

Centre Bore — CORRECT SPEC

• Centre Bore: 69.5mm (OEM)

Confirmed across VN platform and shared across Commodore models from VN through VZ.

Important notes:

• Aftermarket wheels often have larger centre bores (72.6mm / 73.1mm)
• Always use hub-centric rings to 69.5mm
• Ensures correct wheel seating and eliminates vibration

Wheel Offset (ET)

• OEM Offset Range: +40 to +48

Typical setups:

• 14” → +43 to +48
• 15” → +43 to +48
• 16” → +43
• 17” → +40 to +43

Recommended aftermarket range:

• +35 to +45 → Flush fitment
• Lower offset = more aggressive stance

Wheel Nut / Torque Spec

• Recommended Torque: 110 – 120 Nm

Best practice:

• Use a calibrated torque wrench
• Recheck after 50–100 km

Recommended Upgrade Fitments

Daily / Comfort Setup

• 205/65R15
• 15x7 +45
  ✔ Comfortable and budget-friendly

Street Performance Setup

• 235/45R17
• 17x8 +40
  ✔ Most popular VN upgrade

Aggressive Street Setup

• 245/40R18
• 18x8.5 +38
  ✔ Improved stance and grip

Staggered Setup (Performance Builds)

• Front: 245/40R18
• Rear: 275/35R18
  ✔ Ideal for V8 traction

Popular Tyre Options (Available at Autosport Tyreworld)

• Continental UC7 – Daily comfort
• Michelin PS5 / PS4S – Performance
• Yokohama Advan AD09 – Track-focused
• Hankook Ventus S1 Evo – Balanced performance

Fitment Tips (Important)

• VN Commodore uses 5x120 PCD + 69.5mm centre bore
• Always confirm centre bore when swapping wheels
• Check brake clearance on SS models
• Keep rolling diameter within ±3%
• Wider setups may require guard rolling

Common Fitment Mistake (Very Important)

A common issue we see:

Trying to fit VE/VF wheels onto VN

→ VE/VF centre bore = ~66.9–67.1mm
→ VN centre bore = 69.5mm

Result:

• Wheel will NOT seat correctly
• Causes vibration or unsafe fitment

Correct solution:

• Use correct bore wheels, or
• Proper machining / hub-centric solution

Why Choose Autosport Tyreworld?

• Professional wheel & tyre fitment
• Commodore platform specialists
• Competitive pricing (fitted and balanced)
• Fast service across Adelaide

Our Locations (Adelaide)

Magill
647 Magill Road, Magill SA 5072
PH: 0452 641 023

Wingfield
411 Grand Junction Road, Wingfield SA 5013
PH: 0433 645 411

Clarence Gardens (South Road)
911 South Road, Clarence Gardens SA 5039
PH: 0420 299 911