2025 Ford Mustang: the quick answer
The 2025 Ford Mustang ships with 235/55R17 tires on the base trim — that's an overall diameter of 27.2″. The 235 mm width and 55% sidewall ratio give you 129.3 mm of sidewall cushion between the rim and the road.
Tire fitment
2025 Ford Mustang tire size
The 2025 Ford Mustang base tire size is 235/55R17 — 235 mm wide with a 55% aspect ratio on 17″ rims. 4 OEM sizes are available across trims.
2025 Ford Mustang
235/55R1727.2″ overall diameter · 129.3 mm sidewall · ~742 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| EcoBoost ★ | 235/55R17 | 7.5×17″ | 27.2″ (690.3 mm) | — |
| GT | 255/45R18 | 8.5×18″ | 27″ (686.7 mm) | -0.52% |
| Dark Horse (front) | 275/40R19 | 10×19″ | 27.7″ (702.6 mm) | +1.78% |
| Dark Horse (rear) | 305/35R19 | 11×19″ | 27.4″ (696.1 mm) | +0.84% |
Staggered: 275/40R19 front, 305/35R19 rear.
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 2025 Ford Mustang; verify against your door-jamb placard or owner's manual.
FAQ
What tire size does the 2025 Ford Mustang use?
The base 2025 Ford Mustang uses 235/55R17 tires — 235 mm wide, 55% aspect ratio, on 17-inch rims. The overall diameter is 27.2″ (690.3 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 2025 Mustang?
Yes, within limits. Keep the overall diameter within about 3% of 27.2″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your Mustang requires.
What is the overall diameter of 235/55R17 tires?
235/55R17 tires have an overall diameter of 27.2″ (690.3 mm), with a 129.3 mm sidewall height. That's about 742 revolutions per mile.
The 2025 Ford Mustang 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.