Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-15 | 165/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.13 (613) | 23.44 (595.5) | -0.69 (-17.5) -2.9% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 75.82 (1925.8) | 73.65 (1870.82) | -2.16 (-54.98) -2.9% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.22 (107.25) | -0.34 (-8.75) -7.5% |
| Revolutions per mile (km) | 835.68 (519.26) | 860.24 (534.52) | 24.56 (15.26) 2.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.43 mph (31.27 km/h) |
| 25 mph (40.23 km/h) | 24.29 mph (39.09 km/h) |
| 30 mph (48.28 km/h) | 29.14 mph (46.9 km/h) |
| 35 mph (56.33 km/h) | 34 mph (54.72 km/h) |
| 40 mph (64.37 km/h) | 38.86 mph (62.54 km/h) |
| 45 mph (72.42 km/h) | 43.72 mph (70.35 km/h) |
| 50 mph (80.47 km/h) | 48.57 mph (78.17 km/h) |
| 55 mph (88.51 km/h) | 53.43 mph (85.99 km/h) |
| 60 mph (96.56 km/h) | 58.29 mph (93.8 km/h) |
| 65 mph (104.61 km/h) | 63.14 mph (101.62 km/h) |
| 70 mph (112.65 km/h) | 68 mph (109.44 km/h) |
| 75 mph (120.7 km/h) | 72.86 mph (117.26 km/h) |
| 80 mph (128.75 km/h) | 77.72 mph (125.07 km/h) |
| 85 mph (136.79 km/h) | 82.57 mph (132.89 km/h) |
| 90 mph (144.84 km/h) | 87.43 mph (140.71 km/h) |
| 95 mph (152.89 km/h) | 92.29 mph (148.52 km/h) |
| 100 mph (160.93 km/h) | 97.15 mph (156.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2189 | 2543 | 2739 | 2860 | 2990 | 3083 | 3186 | 3307 | 3475 | 3642 | 3829 | 3978 | 4248 | 4546 | 4779 | 4928 | 5012 | 5319 | 5748 | 6679 |
Better Fuel Economy Factory Ratios Increased Power
