Infiniti FX I Tire Sizes, Rim Dimensions & Trim Comparison | Tire Reference
The Infiniti FX I offers a variety of tire sizes and rim dimensions depending on the model year and trim level. Typical tire sizes range from 255/55 R18 to 275/45 R20, reflecting changes in factory equipment and performance considerations.\n\nRim widths typically vary between 7.5 to 9 inches, with diameters ranging from 18 to 20 inches. These variations impact the vehicle's handling characteristics and aesthetics. It is important to reference specific model years and trims as equipment may differ.\n\nWhen comparing trims, higher-spec versions often feature larger rim diameters and wider rims to accommodate wider tires. This enhances grip and stability but may affect ride comfort. For accurate wheel fitment and replacement, consult tire size markings and rim specifications listed by model year and trim.\n\nUnderstanding these tire and rim differences aids in selecting compatible aftermarket wheels or tires, ensuring safety and performance for your Infiniti FX I.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| Infiniti FX I 35 | 2008 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2008 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2008 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2008 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 | 2007 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2007 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2007 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2007 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 | 2006 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2006 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2006 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2006 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 | 2005 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2005 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2005 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2005 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 | 2004 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2004 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2004 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2004 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 | 2003 | 265/60R18 | 8" × 18" |
| Infiniti FX I 35 4WD | 2003 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 | 2003 | 265/60R18 | 8" × 18" |
| Infiniti FX I 45 4WD | 2003 | 265/60R18 | 8" × 18" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Infiniti FX I.
FAQ
- What are the common tire sizes for the Infiniti FX I?
- Common tire sizes for the Infiniti FX I range from 255/55 R18 to 275/45 R20 depending on the model year and trim.
- How do rim widths vary across Infiniti FX I trims?
- Rim widths typically range from 7.5 to 9 inches, with sportier trims generally having wider rims to support larger tires.
- Can I use the same tire size across all Infiniti FX I trims?
- Tire sizes differ by trim and year; always verify the correct size to ensure proper fitment and performance.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
