Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-15 | 165/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.42 (569.5) | 22.15 (562.5) | -0.28 (-7) -1.2% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 70.44 (1789.14) | 69.57 (1767.15) | -0.87 (-21.99) -1.2% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 3.57 (90.75) | -0.14 (-3.5) -3.7% |
| Revolutions per mile (km) | 899.51 (558.93) | 910.7 (565.88) | 11.19 (6.96) 1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.79 km/h) |
| 25 mph (40.23 km/h) | 24.69 mph (39.74 km/h) |
| 30 mph (48.28 km/h) | 29.63 mph (47.69 km/h) |
| 35 mph (56.33 km/h) | 34.57 mph (55.63 km/h) |
| 40 mph (64.37 km/h) | 39.51 mph (63.58 km/h) |
| 45 mph (72.42 km/h) | 44.45 mph (71.53 km/h) |
| 50 mph (80.47 km/h) | 49.39 mph (79.48 km/h) |
| 55 mph (88.51 km/h) | 54.32 mph (87.43 km/h) |
| 60 mph (96.56 km/h) | 59.26 mph (95.37 km/h) |
| 65 mph (104.61 km/h) | 64.2 mph (103.32 km/h) |
| 70 mph (112.65 km/h) | 69.14 mph (111.27 km/h) |
| 75 mph (120.7 km/h) | 74.08 mph (119.22 km/h) |
| 80 mph (128.75 km/h) | 79.02 mph (127.17 km/h) |
| 85 mph (136.79 km/h) | 83.96 mph (135.11 km/h) |
| 90 mph (144.84 km/h) | 88.89 mph (143.06 km/h) |
| 95 mph (152.89 km/h) | 93.83 mph (151.01 km/h) |
| 100 mph (160.93 km/h) | 98.77 mph (158.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2318 | 2692 | 2899 | 3028 | 3166 | 3264 | 3373 | 3501 | 3679 | 3856 | 4053 | 4211 | 4497 | 4813 | 5059 | 5217 | 5306 | 5631 | 6085 | 7071 |
Better Fuel Economy Factory Ratios Increased Power
