Holden Commodore 2019 Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide | Adelaide
Overview
The 2019 Holden Commodore (ZB generation) marked a major shift from traditional rear-wheel drive to a modern front-wheel drive / AWD platform. This change also introduced new wheel fitment specs, making it important to choose the correct tyres and rims for performance, safety, and compliance.
At Autosport Tyreworld Magill, Wingfield & Clarence Gardens, we regularly supply and fit tyres for ZB Commodore models including LT, RS, RS-V, Calais, and VXR.
OEM Tyre Sizes (All Variants)
Depending on trim level, the 2019 Commodore comes with several factory tyre sizes:
- 225/55R17 (Base models)
- 245/45R18 (Common mid-spec – LT, RS)
- 245/40R19 (Sport variants)
- 245/35R20 (VXR performance model)
OEM Wheel (Rim) Specifications
| Variant | Wheel Size |
|---|---|
| Base / LT | 17x7.5 |
| RS / RS-V | 18x8.0 – 18x8.5 |
| Sport / Calais | 19x8.0 |
| VXR | 20x8.5 |
Typical factory setup:
- 18x8.5 ET40–45
- 20x8.5 ET49 (VXR)
Bolt Pattern (PCD)
- 5x115 (Most ZB models)
- 5x120 (VXR only)
Important:
- Do NOT mix these — wheels are NOT interchangeable between standard and VXR models.
Centre Bore (CB)
- CB: 66.9mm – 67.1mm (approx)
For aftermarket wheels:
- Use hub-centric rings if needed
- Ensures vibration-free driving at highway speeds
Wheel Offset (ET)
- Typical OEM offset: +35 to +48
Recommended aftermarket range:
- +35 to +45 for flush fitment
- Lower offset = more aggressive stance
Wheel Nut / Bolt Torque Spec
- Torque: 110 – 140 Nm
- Recommended: 120 Nm (standard workshop setting)
Always torque using a calibrated torque wrench — especially important for alloy wheels.
Recommended Upgrade Fitments
Street / Daily Setup
- 245/45R18
- 18x8.5 +40
✔ Best balance of comfort + cost
Sport Setup
- 245/40R19
- 19x8.5 +40
✔ Sharper handling, better aesthetics
Performance / VXR Style
- 245/35R20
- 20x8.5 +40
✔ Aggressive look, maximum grip
Popular Tyre Options (Available at Autosport Tyreworld)
- Continental UC7 (comfort + daily driving)
- Michelin PS5 / PS4S (performance)
- Yokohama Advan AD09 (sport & track)
- Hankook Ventus S1 Evo series
Fitment Tips (Very Important)
- Confirm PCD before buying wheels (5x115 vs 5x120)
- Always check brake clearance (especially VXR)
- Avoid excessive offset changes — affects suspension geometry
- Keep rolling diameter within ±3%
Why Choose Autosport Tyreworld?
We provide:
- Professional wheel & tyre fitment
- Performance and daily tyre options
- Expert advice on correct sizing
- Fast turnaround (no long waiting like dealerships)
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