The 1984–1986 Holden Commodore VK is a key part of the early Commodore lineup, known for its lightweight body, strong 3.3L engine, and early V8 performance variants.
Today, VK Commodores are widely used for restoration projects, classic builds, and performance upgrades, making correct tyre sizes, wheel specs, PCD, centre bore, and offset essential for proper fitment.
At Autosport Tyreworld Magill, Wingfield & Clarence Gardens, we regularly work on VK Commodores including SL, Executive, Berlina, Calais and SS models.
OEM Tyre Sizes (All Variants)
Based on factory data cross-referenced with Wheel-Size:
- 175R14 / 185/75R14 (Base models)
- 195/70R14 (Common upgrade for comfort)
- 205/65R15 (Higher trim / Calais / V8 models)
Performance models (e.g. HDT / Group A):
- 225/50R16 (Performance applications)
OEM Wheel (Rim) Specifications
| Variant | Wheel Size |
|---|---|
| Base (SL / Executive) | 14x5.5 – 14x6 |
| Berlina / Calais | 14x6 |
| Calais / V8 | 15x6 |
| Performance (SS / HDT) | 16x7 |
Typical OEM specs:
- 14x5.5 ET38–43
- 14x6 ET43
- 15x6 ET43
Factory reference:
- Steel wheels for base models
- Alloy wheels for Calais / SS variants
Bolt Pattern (PCD)
- 5x120
Standard across VK Commodore and continues through VL → VZ generations.
Centre Bore — CORRECT SPEC
- Centre Bore: 69.5mm (OEM)
Confirmed from Wheel-Size and fitment databases.
Important notes:
- Aftermarket wheels often use larger centre bores (72.6mm / 73.1mm)
- Always use hub-centric rings to 69.5mm
- Ensures proper wheel seating and eliminates vibration
Wheel Offset (ET)
- OEM Offset Range: +38 to +48
Typical setups:
- 14” → +38 to +43
- 15” → +43
- 16” → +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 / Classic Setup
- 205/65R15
- 15x7 +45
✔ Maintains classic ride quality
Street Performance Setup
- 235/45R17
- 17x8 +40
✔ Most popular VK 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 builds
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)
- VK Commodore uses 5x120 PCD + 69.5mm centre bore
- Always confirm centre bore when upgrading wheels
- Check brake clearance on V8 / upgraded builds
- 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 VK
→ VE/VF centre bore = ~66.9–67.1mm
→ VK 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