Toyota GR86 ZN8 Tyre Size and Tyre Recommendation Guide Australia
Quick answer
The Australian second-generation Toyota GR86 ZN8 uses 215/45R17 on GT and 215/40R18 on GTS as its core factory tyre-size references. Both grades are offered with manual or automatic transmission. GT has 17-inch wheels and a Michelin Primacy HP factory-tyre reference; GTS has 18-inch wheels and a Michelin Pilot Sport 4 reference. Confirm the complete load index and speed rating on the vehicle placard before ordering.
Australian OEM tyre size guide
| Grade | Transmission | Wheel | Factory tyre reference |
|---|---|---|---|
| GT | 6-speed manual or automatic | 17-inch alloy | 215/45R17 Michelin Primacy HP family; confirm placard suffix |
| GTS | 6-speed manual or automatic | 18-inch alloy | 215/40R18 Michelin Pilot Sport 4 family; confirm placard suffix |
Sources: Toyota Australia GR86 range, GR86 model page and Toyota Australia upgraded GR range release.
This guide is for the second-generation ZN8. First-generation Toyota 86 ZN6 and Subaru BRZ specifications must not be applied as one universal GR86 fitment.
Workshop evidence and modified-size status
| Evidence | Recorded package | Classification |
|---|---|---|
| Autosport GR86 fitting and alignment case | Michelin Pilot Sport 5 215/45R17 | Documented GT-size replacement; not modified |
| No evidence-complete wider-wheel case found in the current audit | Wheel width, offset and clearance not all recorded | No verified modified size published |
Sizes such as 225/40R18, 235/40R18, 245/35R18, 245/40R17 and 265/35R18 therefore remain outside this page's verified modified table. A wider package requires the exact wheel width and offset, brake and body clearance, suspension height, rolling diameter, alignment, load capacity, speed rating, insurance and South Australian legality to be checked.
Specific recommendations for placard-confirmed 215/45R17 GT
| Use | Pattern and complete catalogue size | Note |
|---|---|---|
| Premium daily / wet-road confidence | Continental UltraContact UC7 215/45R17 91W | Confirm XL/load compatibility with placard |
| Performance road | Michelin Pilot Sport 5 215/45R17 91Y XL | Supported by a documented Autosport replacement case |
| Focused road / occasional track direction | Yokohama ADVAN AD09 215/45R17 91W | Consider wet/cold-road, noise and wear trade-offs |
| Performance road alternative | Dunlop SP Sport Maxx 060+ 215/45R17 91Y | Confirm complete placard requirement |
Specific recommendations for placard-confirmed 215/40R18 GTS
| Use | Pattern and complete catalogue size | Note |
|---|---|---|
| Performance road | Michelin Pilot Sport 5 215/40R18 89Y | Confirm load/speed and XL marking |
| Performance road alternative | Bridgestone Potenza Sport 215/40R18 89Y | Road-performance candidate |
| Focused road / occasional track direction | Yokohama ADVAN AD09 215/40R18 89W | Verify speed-rating compliance |
| Value performance road | Kumho Ecsta PS71 215/40R18 89Y | Confirm full placard specification |
These are size-matched catalogue candidates, not stock or price claims. The tyre placard controls the minimum load and speed requirements.
GR86 fitment checks
- Confirm ZN8, GT or GTS, build date, transmission and current wheel.
- Keep front and rear rolling diameter appropriately matched unless a vehicle-specific engineered setup says otherwise.
- Check tyre pressure, balance, alignment and inner-edge wear.
- Track-focused tyres should be assessed separately for wet-road, cold-tyre, noise and wear performance.
GR86 tyre help in Adelaide
Contact Autosport Tyre World with a placard photo and current wheel/suspension details.
Frequently asked questions
What tyre size does the Australian GR86 GT use?
The core GT factory reference is 215/45R17 on 17-inch wheels.
What tyre size does the GR86 GTS use?
The core GTS factory reference is 215/40R18 on 18-inch wheels.
Are 225, 235, 245 or 265-section tyres verified upgrades here?
No. This audit did not find an Autosport case with all required wheel, offset and clearance evidence, so those sizes are not presented as verified GR86 upgrades.