Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-18 | 295/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.98 (685.2) | 27.29 (693.2) | 0.31 (8) 1.2% |
| Width inches (mm) | 11.22 (285) | 11.61 (295) | 0.39 (10) 3.5% |
| Circum. inches (mm) | 84.75 (2152.62) | 85.74 (2177.75) | 0.99 (25.13) 1.2% |
| Sidewall Height inches (mm) | 4.49 (114) | 4.65 (118) | 0.16 (4) 3.5% |
| Revolutions per mile (km) | 747.62 (464.55) | 738.99 (459.19) | -8.63 (-5.36) -1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.56 km/h) |
| 25 mph (40.23 km/h) | 25.29 mph (40.7 km/h) |
| 30 mph (48.28 km/h) | 30.35 mph (48.84 km/h) |
| 35 mph (56.33 km/h) | 35.41 mph (56.98 km/h) |
| 40 mph (64.37 km/h) | 40.47 mph (65.13 km/h) |
| 45 mph (72.42 km/h) | 45.53 mph (73.27 km/h) |
| 50 mph (80.47 km/h) | 50.58 mph (81.41 km/h) |
| 55 mph (88.51 km/h) | 55.64 mph (89.55 km/h) |
| 60 mph (96.56 km/h) | 60.7 mph (97.69 km/h) |
| 65 mph (104.61 km/h) | 65.76 mph (105.83 km/h) |
| 70 mph (112.65 km/h) | 70.82 mph (113.97 km/h) |
| 75 mph (120.7 km/h) | 75.88 mph (122.11 km/h) |
| 80 mph (128.75 km/h) | 80.93 mph (130.25 km/h) |
| 85 mph (136.79 km/h) | 85.99 mph (138.39 km/h) |
| 90 mph (144.84 km/h) | 91.05 mph (146.53 km/h) |
| 95 mph (152.89 km/h) | 96.11 mph (154.67 km/h) |
| 100 mph (160.93 km/h) | 101.17 mph (162.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1881 | 2185 | 2353 | 2457 | 2569 | 2649 | 2737 | 2841 | 2985 | 3129 | 3289 | 3417 | 3649 | 3905 | 4105 | 4233 | 4305 | 4569 | 4938 | 5738 |
Better Fuel Economy Factory Ratios Increased Power
