Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-17 | 145/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.54 (648.8) | 24.99 (634.8) | -0.55 (-14) -2.2% |
| Width inches (mm) | 6.1 (155) | 5.71 (145) | -0.39 (-10) -6.5% |
| Circum. inches (mm) | 80.25 (2038.27) | 78.52 (1994.28) | -1.73 (-43.98) -2.2% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4 (101.5) | -0.28 (-7) -6.5% |
| Revolutions per mile (km) | 789.57 (490.61) | 806.98 (501.43) | 17.41 (10.82) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.37 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.24 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.11 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (62.98 km/h) |
| 45 mph (72.42 km/h) | 44.03 mph (70.86 km/h) |
| 50 mph (80.47 km/h) | 48.92 mph (78.73 km/h) |
| 55 mph (88.51 km/h) | 53.81 mph (86.6 km/h) |
| 60 mph (96.56 km/h) | 58.71 mph (94.48 km/h) |
| 65 mph (104.61 km/h) | 63.6 mph (102.35 km/h) |
| 70 mph (112.65 km/h) | 68.49 mph (110.22 km/h) |
| 75 mph (120.7 km/h) | 73.38 mph (118.1 km/h) |
| 80 mph (128.75 km/h) | 78.27 mph (125.97 km/h) |
| 85 mph (136.79 km/h) | 83.17 mph (133.84 km/h) |
| 90 mph (144.84 km/h) | 88.06 mph (141.72 km/h) |
| 95 mph (152.89 km/h) | 92.95 mph (149.59 km/h) |
| 100 mph (160.93 km/h) | 97.84 mph (157.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2054 | 2386 | 2569 | 2683 | 2805 | 2893 | 2989 | 3102 | 3260 | 3417 | 3592 | 3731 | 3985 | 4265 | 4483 | 4623 | 4701 | 4990 | 5392 | 6266 |
Better Fuel Economy Factory Ratios Increased Power
