2023 Toyota GR86: the quick answer
The 2023 Toyota GR86 ships with 215/45R17 tires on the base trim — that's an overall diameter of 24.6″. The 215 mm width and 45% sidewall ratio give you 96.8 mm of sidewall cushion between the rim and the road.
Tire fitment
2023 Toyota GR86 tire size
The 2023 Toyota GR86 base tire size is 215/45R17 — 215 mm wide with a 45% aspect ratio on 17″ rims. 2 OEM sizes are available across trims.
2023 Toyota GR86
215/45R1724.6″ overall diameter · 96.8 mm sidewall · ~819 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| Base ★ | 215/45R17 | 7.5×17″ | 24.6″ (625.3 mm) | — |
| Premium | 215/40R18 | 7.5×18″ | 24.8″ (629.2 mm) | +0.62% |
Before you buy tires
Match the load index and speed rating from your door-jamb placard — not just the size. If you're switching sizes, keep the overall diameter within ~3% to avoid speedometer error and potential ABS/traction-control issues.
Factory fitment for the 2023 Toyota GR86; verify against your door-jamb placard or owner's manual.
FAQ
What tire size does the 2023 Toyota GR86 use?
The base 2023 Toyota GR86 uses 215/45R17 tires — 215 mm wide, 45% aspect ratio, on 17-inch rims. The overall diameter is 24.6″ (625.3 mm). Higher trims use different sizes — see the table above. Confirm against your door-jamb placard.
Can I use a different tire size on my 2023 GR86?
Yes, within limits. Keep the overall diameter within about 3% of 24.6″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your GR86 requires.
What is the overall diameter of 215/45R17 tires?
215/45R17 tires have an overall diameter of 24.6″ (625.3 mm), with a 96.8 mm sidewall height. That's about 819 revolutions per mile.
The 2023 Toyota GR86 tire sizes shown are OEM factory fitments. Confirm your exact tire size, load rating, and speed rating against the door-jamb placard or owner's manual before buying tires.