Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/30-19 | 275/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.6) | 25.58 (649.7) | -1.1 (-27.9) -4.1% |
| Width inches (mm) | 12.8 (325) | 10.83 (275) | -1.97 (-50) -15.4% |
| Circum. inches (mm) | 83.81 (2128.74) | 80.36 (2041.09) | -3.45 (-87.65) -4.1% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 3.79 (96.25) | -0.05 (-1.25) -1.3% |
| Revolutions per mile (km) | 756.01 (469.76) | 788.47 (489.93) | 32.47 (20.17) 4.3% |
275/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.18 mph (30.86 km/h) |
| 25 mph (40.23 km/h) | 23.97 mph (38.58 km/h) |
| 30 mph (48.28 km/h) | 28.76 mph (46.29 km/h) |
| 35 mph (56.33 km/h) | 33.56 mph (54.01 km/h) |
| 40 mph (64.37 km/h) | 38.35 mph (61.72 km/h) |
| 45 mph (72.42 km/h) | 43.15 mph (69.44 km/h) |
| 50 mph (80.47 km/h) | 47.94 mph (77.15 km/h) |
| 55 mph (88.51 km/h) | 52.74 mph (84.87 km/h) |
| 60 mph (96.56 km/h) | 57.53 mph (92.58 km/h) |
| 65 mph (104.61 km/h) | 62.32 mph (100.3 km/h) |
| 70 mph (112.65 km/h) | 67.12 mph (108.02 km/h) |
| 75 mph (120.7 km/h) | 71.91 mph (115.73 km/h) |
| 80 mph (128.75 km/h) | 76.71 mph (123.45 km/h) |
| 85 mph (136.79 km/h) | 81.5 mph (131.16 km/h) |
| 90 mph (144.84 km/h) | 86.29 mph (138.88 km/h) |
| 95 mph (152.89 km/h) | 91.09 mph (146.59 km/h) |
| 100 mph (160.93 km/h) | 95.88 mph (154.31 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 2331 | 2510 | 2621 | 2741 | 2826 | 2920 | 3031 | 3185 | 3338 | 3509 | 3646 | 3893 | 4167 | 4380 | 4517 | 4594 | 4875 | 5268 | 6122 |
Better Fuel Economy Factory Ratios Increased Power
