Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/60-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.32 (567) | 22.42 (569.5) | 0.1 (2.5) 0.4% |
| Width inches (mm) | 6.1 (155) | 5.71 (145) | -0.39 (-10) -6.5% |
| Circum. inches (mm) | 70.13 (1781.28) | 70.44 (1789.14) | 0.31 (7.85) 0.4% |
| Sidewall Height inches (mm) | 3.66 (93) | 3.71 (94.25) | 0.05 (1.25) 1.3% |
| Revolutions per mile (km) | 903.47 (561.39) | 899.51 (558.93) | -3.97 (-2.46) -0.4% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.09 mph (32.33 km/h) |
| 25 mph (40.23 km/h) | 25.11 mph (40.41 km/h) |
| 30 mph (48.28 km/h) | 30.13 mph (48.49 km/h) |
| 35 mph (56.33 km/h) | 35.15 mph (56.58 km/h) |
| 40 mph (64.37 km/h) | 40.18 mph (64.66 km/h) |
| 45 mph (72.42 km/h) | 45.2 mph (72.74 km/h) |
| 50 mph (80.47 km/h) | 50.22 mph (80.82 km/h) |
| 55 mph (88.51 km/h) | 55.24 mph (88.9 km/h) |
| 60 mph (96.56 km/h) | 60.26 mph (96.99 km/h) |
| 65 mph (104.61 km/h) | 65.29 mph (105.07 km/h) |
| 70 mph (112.65 km/h) | 70.31 mph (113.15 km/h) |
| 75 mph (120.7 km/h) | 75.33 mph (121.23 km/h) |
| 80 mph (128.75 km/h) | 80.35 mph (129.32 km/h) |
| 85 mph (136.79 km/h) | 85.37 mph (137.4 km/h) |
| 90 mph (144.84 km/h) | 90.4 mph (145.48 km/h) |
| 95 mph (152.89 km/h) | 95.42 mph (153.56 km/h) |
| 100 mph (160.93 km/h) | 100.44 mph (161.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2289 | 2659 | 2864 | 2990 | 3127 | 3224 | 3331 | 3458 | 3633 | 3809 | 4003 | 4159 | 4442 | 4753 | 4997 | 5153 | 5241 | 5562 | 6010 | 6984 |
Better Fuel Economy Factory Ratios Increased Power
