Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/55-16 | 165/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.28 (565.9) | 24.44 (620.9) | 2.17 (55) 9.7% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 69.99 (1777.83) | 76.8 (1950.61) | 6.8 (172.79) 9.7% |
| Sidewall Height inches (mm) | 3.14 (79.75) | 4.22 (107.25) | 1.08 (27.5) 34.5% |
| Revolutions per mile (km) | 905.23 (562.48) | 825.04 (512.66) | -80.19 (-49.83) -8.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.94 mph (35.32 km/h) |
| 25 mph (40.23 km/h) | 27.43 mph (44.14 km/h) |
| 30 mph (48.28 km/h) | 32.92 mph (52.97 km/h) |
| 35 mph (56.33 km/h) | 38.4 mph (61.8 km/h) |
| 40 mph (64.37 km/h) | 43.89 mph (70.63 km/h) |
| 45 mph (72.42 km/h) | 49.37 mph (79.46 km/h) |
| 50 mph (80.47 km/h) | 54.86 mph (88.29 km/h) |
| 55 mph (88.51 km/h) | 60.35 mph (97.12 km/h) |
| 60 mph (96.56 km/h) | 65.83 mph (105.95 km/h) |
| 65 mph (104.61 km/h) | 71.32 mph (114.77 km/h) |
| 70 mph (112.65 km/h) | 76.8 mph (123.6 km/h) |
| 75 mph (120.7 km/h) | 82.29 mph (132.43 km/h) |
| 80 mph (128.75 km/h) | 87.78 mph (141.26 km/h) |
| 85 mph (136.79 km/h) | 93.26 mph (150.09 km/h) |
| 90 mph (144.84 km/h) | 98.75 mph (158.92 km/h) |
| 95 mph (152.89 km/h) | 104.23 mph (167.75 km/h) |
| 100 mph (160.93 km/h) | 109.72 mph (176.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2100 | 2439 | 2627 | 2743 | 2868 | 2957 | 3056 | 3172 | 3333 | 3493 | 3672 | 3815 | 4074 | 4360 | 4583 | 4726 | 4807 | 5102 | 5513 | 6406 |
Better Fuel Economy Factory Ratios Increased Power
