Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.15 (562.5) | 22.42 (569.5) | 0.28 (7) 1.2% |
| Width inches (mm) | 6.5 (165) | 5.71 (145) | -0.79 (-20) -12.1% |
| Circum. inches (mm) | 69.57 (1767.15) | 70.44 (1789.14) | 0.87 (21.99) 1.2% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 3.71 (94.25) | 0.14 (3.5) 3.9% |
| Revolutions per mile (km) | 910.7 (565.88) | 899.51 (558.93) | -11.19 (-6.96) -1.2% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.25 mph (32.59 km/h) |
| 25 mph (40.23 km/h) | 25.31 mph (40.73 km/h) |
| 30 mph (48.28 km/h) | 30.37 mph (48.88 km/h) |
| 35 mph (56.33 km/h) | 35.44 mph (57.03 km/h) |
| 40 mph (64.37 km/h) | 40.5 mph (65.17 km/h) |
| 45 mph (72.42 km/h) | 45.56 mph (73.32 km/h) |
| 50 mph (80.47 km/h) | 50.62 mph (81.47 km/h) |
| 55 mph (88.51 km/h) | 55.68 mph (89.62 km/h) |
| 60 mph (96.56 km/h) | 60.75 mph (97.76 km/h) |
| 65 mph (104.61 km/h) | 65.81 mph (105.91 km/h) |
| 70 mph (112.65 km/h) | 70.87 mph (114.06 km/h) |
| 75 mph (120.7 km/h) | 75.93 mph (122.2 km/h) |
| 80 mph (128.75 km/h) | 81 mph (130.35 km/h) |
| 85 mph (136.79 km/h) | 86.06 mph (138.5 km/h) |
| 90 mph (144.84 km/h) | 91.12 mph (146.64 km/h) |
| 95 mph (152.89 km/h) | 96.18 mph (154.79 km/h) |
| 100 mph (160.93 km/h) | 101.24 mph (162.94 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
