Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 165/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 26.09 (662.8) | 1.1 (28) 4.4% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 78.52 (1994.28) | 81.98 (2082.25) | 3.46 (87.96) 4.4% |
| Sidewall Height inches (mm) | 4 (101.5) | 4.55 (115.5) | 0.55 (14) 13.8% |
| Revolutions per mile (km) | 806.98 (501.43) | 772.89 (480.25) | -34.09 (-21.18) -4.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.61 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42.01 km/h) |
| 30 mph (48.28 km/h) | 31.32 mph (50.41 km/h) |
| 35 mph (56.33 km/h) | 36.54 mph (58.81 km/h) |
| 40 mph (64.37 km/h) | 41.76 mph (67.21 km/h) |
| 45 mph (72.42 km/h) | 46.98 mph (75.61 km/h) |
| 50 mph (80.47 km/h) | 52.21 mph (84.02 km/h) |
| 55 mph (88.51 km/h) | 57.43 mph (92.42 km/h) |
| 60 mph (96.56 km/h) | 62.65 mph (100.82 km/h) |
| 65 mph (104.61 km/h) | 67.87 mph (109.22 km/h) |
| 70 mph (112.65 km/h) | 73.09 mph (117.62 km/h) |
| 75 mph (120.7 km/h) | 78.31 mph (126.02 km/h) |
| 80 mph (128.75 km/h) | 83.53 mph (134.43 km/h) |
| 85 mph (136.79 km/h) | 88.75 mph (142.83 km/h) |
| 90 mph (144.84 km/h) | 93.97 mph (151.23 km/h) |
| 95 mph (152.89 km/h) | 99.19 mph (159.63 km/h) |
| 100 mph (160.93 km/h) | 104.41 mph (168.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1967 | 2285 | 2461 | 2569 | 2687 | 2770 | 2862 | 2971 | 3122 | 3273 | 3440 | 3574 | 3817 | 4084 | 4294 | 4428 | 4503 | 4779 | 5164 | 6001 |
Better Fuel Economy Factory Ratios Increased Power
