Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-16 | 225/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.15 (587.9) | 24.2 (614.7) | 1.06 (26.8) 4.6% |
| Width inches (mm) | 6.5 (165) | 8.86 (225) | 2.36 (60) 36.4% |
| Circum. inches (mm) | 72.71 (1846.94) | 76.03 (1931.14) | 3.31 (84.19) 4.6% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 3.1 (78.75) | -0.47 (-12) -13.2% |
| Revolutions per mile (km) | 871.36 (541.43) | 833.37 (517.83) | -37.99 (-23.61) -4.4% |
225/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.91 mph (33.65 km/h) |
| 25 mph (40.23 km/h) | 26.14 mph (42.07 km/h) |
| 30 mph (48.28 km/h) | 31.37 mph (50.48 km/h) |
| 35 mph (56.33 km/h) | 36.6 mph (58.89 km/h) |
| 40 mph (64.37 km/h) | 41.82 mph (67.31 km/h) |
| 45 mph (72.42 km/h) | 47.05 mph (75.72 km/h) |
| 50 mph (80.47 km/h) | 52.28 mph (84.14 km/h) |
| 55 mph (88.51 km/h) | 57.51 mph (92.55 km/h) |
| 60 mph (96.56 km/h) | 62.74 mph (100.96 km/h) |
| 65 mph (104.61 km/h) | 67.96 mph (109.38 km/h) |
| 70 mph (112.65 km/h) | 73.19 mph (117.79 km/h) |
| 75 mph (120.7 km/h) | 78.42 mph (126.2 km/h) |
| 80 mph (128.75 km/h) | 83.65 mph (134.62 km/h) |
| 85 mph (136.79 km/h) | 88.87 mph (143.03 km/h) |
| 90 mph (144.84 km/h) | 94.1 mph (151.44 km/h) |
| 95 mph (152.89 km/h) | 99.33 mph (159.86 km/h) |
| 100 mph (160.93 km/h) | 104.56 mph (168.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2121 | 2464 | 2653 | 2771 | 2897 | 2987 | 3086 | 3204 | 3366 | 3529 | 3709 | 3853 | 4115 | 4404 | 4630 | 4774 | 4855 | 5153 | 5568 | 6471 |
Better Fuel Economy Factory Ratios Increased Power
